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CLIENT:
UM PROJECT:
RED WIFI UM DATE:
2/21/2019 TRIAL EVALUATION
Content 1. Site Survey Summary .......................................................................................................................... 5 1.1. Wireless network survey information ......................................................................................... 5 1.2. Summary of detected networks .................................................................................................. 6 2. Networks ...........................................................................................................................................10 3. Access Points .....................................................................................................................................12 4. Wireless predictive planning .............................................................................................................15 4.1. Location planning: OSCD ASWF .................................................................................................15 4.1.1. Planning details ...................................................................................................................15 4.1.2. Planning frequency band: 2.4 Ghz ......................................................................................16 4.1.2.1. APs RSSI coverage ........................................................................................................16 4.1.2.2. Number of APs .............................................................................................................17 4.1.2.3. AP Coverage .................................................................................................................18 4.1.2.4. Channel coverage.........................................................................................................19 4.1.2.5. Signal-to-interference ratio .........................................................................................20 4.1.3. Planning frequency band: 5 Ghz .........................................................................................21 4.1.3.1. APs RSSI coverage ........................................................................................................21 4.1.3.2. Number of APs .............................................................................................................22 4.1.3.3. AP Coverage .................................................................................................................23 4.1.3.4. Channel coverage.........................................................................................................24 4.1.3.5. Signal-to-interference ratio .........................................................................................25 5. Location Survey: OSCD ASWF ...........................................................................................................26 5.1. Location details ..........................................................................................................................26 5.1.1. Survey Route .......................................................................................................................27 5.1.2. "OSCD ASWF" Access Point Position ...................................................................................29 5.2. Radio frequency spectrum .........................................................................................................31 5.2.1. 2.4GHz .................................................................................................................................32 5.2.2. 5GHz ....................................................................................................................................33 5.3. Network Survey: Umanizales .....................................................................................................34
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5.3.1. Network Details ..................................................................................................................34 5.3.1.1. AP-based Information ..................................................................................................34 5.3.1.2. Channel-based Information .........................................................................................35 5.3.1.3. "Umanizales" Access Point Position.............................................................................36 5.3.2. WiFi Quality .........................................................................................................................38 5.3.2.1. Web Browsing WiFi requirements ...............................................................................38 5.3.2.1.1. RSSI Coverage........................................................................................................39 5.3.2.1.2. Simultaneous RSSI Coverage.................................................................................40 5.3.2.1.3. Channel Overlap....................................................................................................41 5.3.2.1.4. Co-Channel Interference .......................................................................................42 5.3.2.1.5. Latency ..................................................................................................................44 5.3.2.1.6. Bandwidth .............................................................................................................45 5.3.2.1.7. Packet Loss ............................................................................................................46 5.3.2.1.8. Access Point Roaming ...........................................................................................47 5.3.2.2. VoIP over WiFi requirements .......................................................................................48 5.3.2.2.1. RSSI Coverage........................................................................................................49 5.3.2.2.2. Simultaneous RSSI Coverage.................................................................................50 5.3.2.2.3. Channel Overlap....................................................................................................51 5.3.2.2.4. Co-Channel Interference .......................................................................................52 5.3.2.2.5. Latency ..................................................................................................................54 5.3.2.2.6. Bandwidth .............................................................................................................55 5.3.2.2.7. Packet Loss ............................................................................................................56 5.3.2.2.8. Access Point Roaming ...........................................................................................57 5.3.3. Survey..................................................................................................................................58 5.3.3.1. RSSI Heatmap ...............................................................................................................58 5.3.3.2. Number of APs .............................................................................................................59 5.3.3.3. AP Coverage .................................................................................................................60 5.3.3.4. Channel Coverage ........................................................................................................62 5.3.3.5. Channel Overlap...........................................................................................................63
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5.3.3.6. Detailed Grid ................................................................................................................64 5.3.3.7. SNR Heatmap ...............................................................................................................66 5.3.3.8. Data Rate Heatmap ......................................................................................................67 5.3.3.9. Cell Density Heatmap ...................................................................................................69 5.3.3.10. Retries Rate Heatmap ................................................................................................70 5.3.3.11. Bandwidth ..................................................................................................................71 5.3.3.12. Latency .......................................................................................................................72 5.3.3.13. Packet Loss .................................................................................................................73 5.3.3.14. Roaming .....................................................................................................................74
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1. SITE SURVEY SUMMARY 1.1. WIRELESS NETWORK SURVEY INFORMATION This section contains general information regarding the wireless environment analysis using Acrylic WiFi Heatmaps.
Project Name Client Description Data Selected Locations Selected Scans Selected Stations
RED WIFI UM UM PRUEBA COBERTURA 4 PISO 21/02/2019 1 1 15
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1.2. SUMMARY OF DETECTED NETWORKS The following table summarizes Networks, physical Access Points, and MAC Addresses (BSSIDs) providing network access throughout the survey locations: - Location: Physical area where a survey was taken. - Networks: Number of Networks detected. - Access Points (APs): Number of physical access points detected. - BSSIDs: Networks provided by those physical access points as indicated by different MAC addresses. The number of BSSIDs can exceed the number of physical APs because a single AP can propagate more than one network by using different MAC addresses.
LOCATION OSCD ASWF Total
NETWORKS 48 48
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APS 97 97
BSSIDS 114 114
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The following graph shows a comparison between the number of networks, physical APs and BSSIDs at each location.
Summary: Networks, APs and BSSIDs 114
97 120
Networks
100
APs
80 60
BSSIDs
48
40 20 0 OSCD ASWF
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The following two graphs show the number of BSSIDs detected at each Channel, in the 2.4GHz and in the 5GHz frequency bands respectively.
BSSIDs by Channel - 2.4GHz 50
46
45
40
BSSIDs
35 30 22
25 17
20 15 10
6
5
1
9 4
3
1
2
7
8
1
0
2
0
0 1
2
3
4
5
6
9
10
11
12
13
14
Channel
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The following graph shows the number of BSSIDs detected, ordered by maximum Data Rate registered value.
BSSID by maximum Data Rate 450
2
Maximum Data Rate
300
4
260
11
216,7
23
195
51
150
2
144,4
14
72,2
5
54
2 0
10
20
30
40
50
60
BSSIDs
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2. NETWORKS The following table contains relevant information about the networks under study: - SSID: Network identifier offered by the BSSID. - BSSID: Unique device identifier (Basic Service Set Identifier) - Channel: Identifier of the frequency on which the network is operating. - Frequency: Value of frequency in which the network channel is operating, expressed in Mhz. - Average RSSI: Average Signal Strength detected on each device during the survey. - Maximum RSSI: Maximum Signal Strength detected on each device during the survey. - Minimum RSSI: Minimum Signal Strength detected on each device during the survey. - Security: Types of authentication and encryption supported by the network. - WPS: Wi-Fi Protected Setup version supported by the network. SSID
1
BSSID
CHAN
FREQ
RSSI AVG
RSSI MAX
RSSI MIN
90:6C:AC:FA:93:63
1
2412
-80
-58
-95
90:6C:AC:FA:C2:2A
9
2452
-85
-81
-89
92:4C:A5:94:99:81
1
2412
-83
-80
-87
92:4C:A5:94:9A:23
1
2412
-75
-69
-85
92:4C:A5:94:9A:6B
11
2462
-74
-69
-84
92:4C:A5:94:9D:DD
11
2462
-76
-63
-86
92:4C:A5:94:9E:6D
1
2412
-77
-71
-87
92:4C:A5:94:9E:7F
1
2412
-86
-86
-87
92:4C:A5:94:A0:9B
6
2437
-84
-84
-84
92:4C:A5:94:A1:BB
6
2437
-64
-52
-95
92:4C:A5:94:A1:CD
11
2462
-78
-69
-84
92:4C:A5:94:A6:71
6
2437
-84
-84
-84
92:4C:A5:94:AC:FB
1
2412
-82
-81
-85
A2:4C:A5:94:99:ED
1
2412
-83
-82
-85
Umanizales
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SECURITY
WPS
WPA2 PersonalCCMP WPA2 PersonalCCMP WPA2 PersonalCCMP WPA2 PersonalCCMP WPA2 PersonalCCMP WPA2 PersonalCCMP WPA2 PersonalCCMP WPA2 PersonalCCMP WPA2 PersonalCCMP WPA2 PersonalCCMP WPA2 PersonalCCMP WPA2 PersonalCCMP WPA2 PersonalCCMP WPA2 PersonalCCMP
10
SSID
BSSID
CHAN
FREQ
RSSI AVG
RSSI MAX
RSSI MIN
SECURITY
C2:6C:AC:F4:43:77
3
2422
-84
-84
-84
WPA2 PersonalCCMP
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WPS
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3. ACCESS POINTS This section shows information about the physical access points detected during a survey, grouping all BSSIDs that are managed by the same physical device, as well as the number of clients connected to each one of them during the survey. For each physical access point, its manufacturer is shown, as well as all its managed networks. For each physical access point: - BSSID: Associated MAC addresses granting network access. - SSID: Network identifier offered by the BSSID. - Channel: Identifier of the frequency associated to the network. - Frequency: Value of the frequency associated to the network. - 802.11: Supported standard - Clients: Number of connected clients (if monitoring is performed on Monitor Mode or Airpcap)
90:6C:AC:FA:93:6- / FORTINET. INC. BSSID 90:6C:AC:FA:93:63
SSID Umanizales
CHAN 1
FREQ 2412
802.11 g, n
SSID Umanizales
CHAN 9
FREQ 2452
802.11 g, n
SSID Umanizales
CHAN 1
FREQ 2412
802.11 g, n
SSID Umanizales
CHAN 1
FREQ 2412
802.11 g, n
SSID Umanizales
CHAN 11
FREQ 2462
802.11 g, n
90:6C:AC:FA:C2:2- / FORTINET. INC. BSSID 90:6C:AC:FA:C2:2A
92:4C:A5:94:99:8BSSID 92:4C:A5:94:99:81
92:4C:A5:94:9A:2BSSID 92:4C:A5:94:9A:23
92:4C:A5:94:9A:6BSSID 92:4C:A5:94:9A:6B
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92:4C:A5:94:9D:DBSSID 92:4C:A5:94:9D:DD
SSID Umanizales
CHAN 11
FREQ 2462
802.11 g, n
SSID Umanizales
CHAN 1
FREQ 2412
802.11 g, n
SSID Umanizales
CHAN 1
FREQ 2412
802.11 g, n
SSID Umanizales
CHAN 6
FREQ 2437
802.11 g, n
SSID Umanizales
CHAN 6
FREQ 2437
802.11 g, n
SSID Umanizales
CHAN 11
FREQ 2462
802.11 g, n
SSID Umanizales
CHAN 6
FREQ 2437
802.11 g, n
SSID Umanizales
CHAN 1
FREQ 2412
802.11 g, n
92:4C:A5:94:9E:6BSSID 92:4C:A5:94:9E:6D
92:4C:A5:94:9E:7BSSID 92:4C:A5:94:9E:7F
92:4C:A5:94:A0:9BSSID 92:4C:A5:94:A0:9B
92:4C:A5:94:A1:BBSSID 92:4C:A5:94:A1:BB
92:4C:A5:94:A1:CBSSID 92:4C:A5:94:A1:CD
92:4C:A5:94:A6:7BSSID 92:4C:A5:94:A6:71
92:4C:A5:94:AC:FBSSID 92:4C:A5:94:AC:FB
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A2:4C:A5:94:99:EBSSID A2:4C:A5:94:99:ED
SSID Umanizales
CHAN 1
FREQ 2412
802.11 g, n
SSID Umanizales
CHAN 3
FREQ 2422
802.11 g, n
C2:6C:AC:F4:43:7BSSID C2:6C:AC:F4:43:77
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4. WIRELESS PREDICTIVE PLANNING This section contains the digraphs, plans and heat maps of the wireless infrastructure design. The planning is the first stage in a wifi network installation, where in a theoretical way, the locations of the access points as well as the conditions and constructive elements of the area where the wireless infrastructure is going to be deployed are approached.
4.1. LOCATION PLANNING: OSCD ASWF For each location, we have a plan of where to locate the access points. 4.1.1. PLANNING DETAILS This is the blueprint on which planning has been carried out. The constructive elements drawn are detailed as well as the location of the access points for its later analysis and validation using the planning algorithms. Una buena infraestructura WiFi necesita una buena intensidad de señal, por lo que es importante distribuir los APs de forma que las áreas de interés dispongan de buena cobertura y sean capaces de cubrir todo el area sin que muros o paredes degraden la emisión.
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4.1.2. PLANNING FREQUENCY BAND: 2.4 GHZ The results of the planning simulations for the specified frequency band are shown below. 4.1.2.1. APS RSSI COVERAGE This heat map shows the RSSI (Received Signal Strength) that will exist in a zone. It is considered an acceptable RSSI -65dBm, and a good one starting at -55dBm.
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4.1.2.2. NUMBER OF APS This shows the number of available APs in each zone, De modo que se obtiene la redundancia disponible para cada lugar.
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4.1.2.3. AP COVERAGE This option shows the area of influence for each AP. That is, the AP that is received with the best signal in each zone. This visualization makes it possible to visualize the area covered by each AP, allowing the identification of those that, due to their small radius of action, are being underused.
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4.1.2.4. CHANNEL COVERAGE This option shows which channel is used within each zone. This visualization helps the planning of APs to avoid interference. The contact between zones with nearby channels will cause interferences and degradation of network performance.
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4.1.2.5. SIGNAL-TO-INTERFERENCE RATIO This option shows areas that will suffer performance degradation due to interferences with other APs.
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4.1.3. PLANNING FREQUENCY BAND: 5 GHZ The results of the planning simulations for the specified frequency band are shown below. 4.1.3.1. APS RSSI COVERAGE This heat map shows the RSSI (Received Signal Strength) that will exist in a zone. It is considered an acceptable RSSI -65dBm, and a good one starting at -55dBm.
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4.1.3.2. NUMBER OF APS This shows the number of available APs in each zone, De modo que se obtiene la redundancia disponible para cada lugar.
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4.1.3.3. AP COVERAGE This option shows the area of influence for each AP. That is, the AP that is received with the best signal in each zone. This visualization makes it possible to visualize the area covered by each AP, allowing the identification of those that, due to their small radius of action, are being underused.
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4.1.3.4. CHANNEL COVERAGE This option shows which channel is used within each zone. This visualization helps the planning of APs to avoid interference. The contact between zones with nearby channels will cause interferences and degradation of network performance.
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4.1.3.5. SIGNAL-TO-INTERFERENCE RATIO This option shows areas that will suffer performance degradation due to interferences with other APs.
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5. LOCATION SURVEY: OSCD ASWF 5.1. LOCATION DETAILS Short data related to the OSCD ASWF Location Location Name OSCD ASWF Description DOSOS Selected Scans at this Scan 1 Location
Blueprint for the location OSCD ASWF
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5.1.1. SURVEY ROUTE The following image shows the path followed at the OSCD ASWF location during the site survey, which indicates all locations where data was collected to be later analyzed.
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5.1.2. "OSCD ASWF" ACCESS POINT POSITION The following image shows the approximate positions within the OSCD ASWF location of all access points identified during the site survey. These positions are manually configured, or otherwise are automatically estimated based on the measured data.
Physical APs Position for OSCD ASWF Location
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
BSSID C2:6C:AC:F4:43:77 92:4C:A5:94:A6:71 92:4C:A5:94:A1:CD 92:4C:A5:94:A1:BB 92:4C:A5:94:A0:9B 92:4C:A5:94:9E:7F 92:4C:A5:94:9E:6D 92:4C:A5:94:9D:DD 92:4C:A5:94:9A:6B 90:6C:AC:FA:C2:2A 90:6C:AC:FA:93:63 A2:4C:A5:94:99:ED 92:4C:A5:94:AC:FB 92:4C:A5:94:9A:23 92:4C:A5:94:99:81
SSID Umanizales Umanizales Umanizales Umanizales Umanizales Umanizales Umanizales Umanizales Umanizales Umanizales Umanizales Umanizales Umanizales Umanizales Umanizales
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VENDOR
Fortinet. Inc. Fortinet. Inc.
CHAN 3 6 11 6 6 1 1 11 11 9 1 1 1 1 1
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5.2. RADIO FREQUENCY SPECTRUM This section represents the information collected from radio electrical medium for the 2.4 and 5Ghz frequency bands. Wireless transmissions operate on one of these bands, according to the 802.11 communication standard being implemented. For each band, an access point operates in a frequency subset. Depending on the access point configuration, and the 802.11 standard revision, networks can operate in frequency bandwidths of 20, 40, 80, or even 160 Mhz. Therefore, an access point that is set to operate on channel 6 of the 2.4Ghz frequency band, with a 20Mhz bandwidth, will use the frequencies of the channels 4,5,6,7, and 8 (two channels to the left and another two channels to the right from the central channel 6). Wi-Fi communications quality is decreased in an environment of coexisting radio transmission on the same frequencies. These emissions may come from neighboring wireless networks or from any other source. This section displays all emissions in the operating frequency bands, whether coming from Wi-Fi devices or not. The areas where radio emissions are detected but no access point is in operation, suggest the presence of devices emitting in the same range of frequencies that are negatively impacting the communications quality.
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5.2.1. 2.4GHZ The following graph displays the 2.4GHz band radio emissions used in Wi-Fi communications. This frequency range is widely used by multiple wireless technologies. Many devices such as Bluetooth headsets, microwave ovens, surveillance cameras, baby monitors, wireless phones, drone remote controls, among others, operate on the 2.4GHz band.
The graph can't be generated due to the absence of spectrum data in the current location.
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5.2.2. 5GHZ The following graph displays the 5GHz band radio emissions used in Wi-Fi communications. This frequency range is widely used by multiple wireless technologies. However, the 2.4Ghz frequency range is more often used than the 5Ghz band.
The graph can't be generated due to the absence of spectrum data in the current location.
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5.3. NETWORK SURVEY: UMANIZALES 5.3.1. NETWORK DETAILS 5.3.1.1. AP-BASED INFORMATION The following table contains information related to the Umanizales network, which is organized based on its APs: - SSID: Network identifier offered by the BSSID. - BSSID: Associated MAC addresses granting network access. - Channel: Identifier of the frequency associated to the network. - Frequency: Value of the frequency associated to the network. - Security: Types of authentication and encryption supported by the network. - Vendor: Device manufacturer.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
SSID BSSID 90:6C:AC:FA:93:63 90:6C:AC:FA:C2:2A 92:4C:A5:94:99:81 92:4C:A5:94:9A:23 92:4C:A5:94:9A:6B 92:4C:A5:94:9D:DD 92:4C:A5:94:9E:6D 92:4C:A5:94:9E:7F 92:4C:A5:94:A0:9B 92:4C:A5:94:A1:BB 92:4C:A5:94:A1:CD 92:4C:A5:94:A6:71 92:4C:A5:94:AC:FB A2:4C:A5:94:99:ED C2:6C:AC:F4:43:77
CHANNEL 1 9 1 1 11 11 1 1 6 6 11 6 1 1 3
FREQ 2412 2452 2412 2412 2462 2462 2412 2412 2437 2437 2462 2437 2412 2412 2422
UMANIZALES SECURITY WPA2 Personal-CCMP WPA2 Personal-CCMP WPA2 Personal-CCMP WPA2 Personal-CCMP WPA2 Personal-CCMP WPA2 Personal-CCMP WPA2 Personal-CCMP WPA2 Personal-CCMP WPA2 Personal-CCMP WPA2 Personal-CCMP WPA2 Personal-CCMP WPA2 Personal-CCMP WPA2 Personal-CCMP WPA2 Personal-CCMP WPA2 Personal-CCMP
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VENDOR Fortinet. Inc. Fortinet. Inc.
34
5.3.1.2. CHANNEL-BASED INFORMATION The following table contains Umanizales network related information, which is organized based on the transmitting channels/frequencies: - SSID: Network identifier offered by the BSSID. - Channel: Identifier of the frequency associated to the network. - Frequency: Value of the frequency associated to the network. - BSSID: Associated MAC addresses granting network access. - Vendor: Device manufacturer. SSID
UMANIZALES
CHANNEL
FREQUENCY
1
2412
3
2422
6
2437
9
2452
11
2462
BSSID 90:6C:AC:FA:93:63 92:4C:A5:94:99:81 92:4C:A5:94:9A:23 92:4C:A5:94:9E:6D 92:4C:A5:94:9E:7F 92:4C:A5:94:AC:FB A2:4C:A5:94:99:ED C2:6C:AC:F4:43:77 92:4C:A5:94:A0:9B 92:4C:A5:94:A1:BB 92:4C:A5:94:A6:71 90:6C:AC:FA:C2:2A 92:4C:A5:94:9A:6B 92:4C:A5:94:9D:DD 92:4C:A5:94:A1:CD
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VENDOR Fortinet. Inc.
Fortinet. Inc.
35
5.3.1.3. "UMANIZALES" ACCESS POINT POSITION The following image shows the approximate positions of all access points identified during the site survey which are publishing the network Umanizales. These positions are manually configured, or otherwise are automatically estimated based on the measured data.
Physical APs Position for Umanizales Network
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
BSSID C2:6C:AC:F4:43:77 92:4C:A5:94:A6:71 92:4C:A5:94:A1:CD 92:4C:A5:94:A1:BB 92:4C:A5:94:A0:9B 92:4C:A5:94:9E:7F 92:4C:A5:94:9E:6D 92:4C:A5:94:9D:DD 92:4C:A5:94:9A:6B 90:6C:AC:FA:C2:2A 90:6C:AC:FA:93:63 A2:4C:A5:94:99:ED 92:4C:A5:94:AC:FB 92:4C:A5:94:9A:23 92:4C:A5:94:99:81
SSID Umanizales Umanizales Umanizales Umanizales Umanizales Umanizales Umanizales Umanizales Umanizales Umanizales Umanizales Umanizales Umanizales Umanizales Umanizales
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VENDOR
Fortinet. Inc. Fortinet. Inc.
CHAN 3 6 11 6 6 1 1 11 11 9 1 1 1 1 1
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5.3.2. WIFI QUALITY 5.3.2.1. WEB BROWSING WIFI REQUIREMENTS ASSESSMENT CONTROL RSSI Coverage Simultaneous RSSI Coverage Channel Overlap Co-Channel Interference Latency Bandwidth Packet Loss Access Point Roaming OVERALL WIFI QUALITY
% 16% 16% 64% 100% N/A N/A N/A N/A 49%
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QUALITY Bad Bad Bad Excellent N/A N/A N/A N/A BAD
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5.3.2.1.1. RSSI COVERAGE The RSSI Coverage control displays those areas where the signal strength received from any of the selected access points falls below the selected threshold value. Signal strength has a significant impact on the quality of communications. Signal strength is measured in dBm: the power ratio with reference to one milliwatt and is indicated in the range from 0 dBm (stronger) to -100 dBm (weaker).
RSSI Coverage for the network Umanizales
Pass Fail
RSSI Required greater than or equal -65 dBm
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5.3.2.1.2. SIMULTANEOUS RSSI COVERAGE The Simultaneous AP Coverage control displays those areas where signal strength received by any of the network access points is equal or lower than the predetermined threshold value. To ensure dependable wireless communications, it is necessary, under certain circumstances, that all the points in the coverage area can access a certain number of access points within the network infrastructure, preventing channel overlapping, with at least a minimum signal strength.
Simultaneous RSSI Coverage for the network Umanizales
Pass
RSSI Required greater than or equal -65 dBm Simultaneous APs Required greater than or equal 1 APs
Fail
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5.3.2.1.3. CHANNEL OVERLAP The Channel Overlapping control shows those areas where adjacent interference requirements are met. An AP is considered to have adjacent interference when some of its transmitted frequencies overlap with another AP transmitting on a different channel over the same band.
Channel Overlap for the network Umanizales
Pass
AP Overlap less than or equal 0 APs Gap RSSI greater than or equal 20 dBm
Fail
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5.3.2.1.4. CO-CHANNEL INTERFERENCE This control displays those areas where co-channel interference parameters are met. An AP is considered to have co-channel interference when there is another AP transmitting on the same channel within its wireless range. When co-channel overlap exists, multiple access points must share the frequency. Since only one access point can transmit on a given frequency at a time, when an access point has data to transmit, it must first analyze the spectrum to determine if there is another device currently using the chosen channel. If it finds another device currently using the channel, it must wait for it to finish before it can use it. This significantly reduces the available bandwidth to each access point since the available bandwidth must be divided among all the access points using that channel.
Co-Channel Interference for the network Umanizales
Pass
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Fail
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5.3.2.1.5. LATENCY Latency is the time interval between sending a data packet and receiving a response (round trip time). In this case, latency is the amount of time a packet takes to be transmitted and received back in the wireless space. Acceptable latency values range from 1-10ms. The graph can't be generated due to the absence of active survey data in the current location. Please ensure that active survey configuration is correctly set and active during the scan.
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5.3.2.1.6. BANDWIDTH The Bandwidth control indicates whether minimum bandwidth requirements for the active survey are met throughout the coverage area. The graph can't be generated due to the absence of active survey data in the current location. Please ensure that active survey configuration is correctly set and active during the scan.
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5.3.2.1.7. PACKET LOSS The packet loss rate is the percentage of packets that do not reach their destination which are (usually) retransmitted. Packet loss has a negative impact on network performance. When a packet does not reach its destination, packet retransmission is usually requested by the recipient, adding additional time to complete the transmission. Packet loss rates under 10% are acceptable and will have a negligible impact on network performance in most cases. The graph can't be generated due to the absence of active survey data in the current location. Please ensure that active survey configuration is correctly set and active during the scan.
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5.3.2.1.8. ACCESS POINT ROAMING When an existing wireless network coverage area exceeds the range of a single access point, additional access points must be deployed. The process of switching from an access point with decreasing signal strength to one with a better signal while staying on the same network is called Roaming. Roaming allows a client to stay connected to the network and maintain communication when moving beyond the range of the currently connected access point into the range of another broadcasting the same network. The graph can't be generated due to the absence of active survey data in the current location. Please ensure that active survey configuration is correctly set and active during the scan.
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5.3.2.2. VOIP OVER WIFI REQUIREMENTS ASSESSMENT CONTROL RSSI Coverage Simultaneous RSSI Coverage Channel Overlap Co-Channel Interference Latency Bandwidth Packet Loss Access Point Roaming OVERALL WIFI QUALITY
% 6% 2% 64% 100% N/A N/A N/A N/A 43%
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QUALITY Bad Bad Bad Excellent N/A N/A N/A N/A BAD
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5.3.2.2.1. RSSI COVERAGE The RSSI Coverage control displays those areas where the signal strength received from any of the selected access points falls below the selected threshold value. Signal strength has a significant impact on the quality of communications. Signal strength is measured in dBm: the power ratio with reference to one milliwatt and is indicated in the range from 0 dBm (stronger) to -100 dBm (weaker).
RSSI Coverage for the network Umanizales
Pass Fail
RSSI Required greater than or equal -60 dBm
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5.3.2.2.2. SIMULTANEOUS RSSI COVERAGE The Simultaneous AP Coverage control displays those areas where signal strength received by any of the network access points is equal or lower than the predetermined threshold value. To ensure dependable wireless communications, it is necessary, under certain circumstances, that all the points in the coverage area can access a certain number of access points within the network infrastructure, preventing channel overlapping, with at least a minimum signal strength.
Simultaneous RSSI Coverage for the network Umanizales
Pass
RSSI Required greater than or equal -65 dBm Simultaneous APs Required greater than or equal 2 APs
Fail
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5.3.2.2.3. CHANNEL OVERLAP The Channel Overlapping control shows those areas where adjacent interference requirements are met. An AP is considered to have adjacent interference when some of its transmitted frequencies overlap with another AP transmitting on a different channel over the same band.
Channel Overlap for the network Umanizales
Pass
AP Overlap less than or equal 0 APs Gap RSSI greater than or equal 20 dBm
Fail
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5.3.2.2.4. CO-CHANNEL INTERFERENCE This control displays those areas where co-channel interference parameters are met. An AP is considered to have co-channel interference when there is another AP transmitting on the same channel within its wireless range. When co-channel overlap exists, multiple access points must share the frequency. Since only one access point can transmit on a given frequency at a time, when an access point has data to transmit, it must first analyze the spectrum to determine if there is another device currently using the chosen channel. If it finds another device currently using the channel, it must wait for it to finish before it can use it. This significantly reduces the available bandwidth to each access point since the available bandwidth must be divided among all the access points using that channel.
Co-Channel Interference for the network Umanizales
Pass
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Fail
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5.3.2.2.5. LATENCY Latency is the time interval between sending a data packet and receiving a response (round trip time). In this case, latency is the amount of time a packet takes to be transmitted and received back in the wireless space. Acceptable latency values range from 1-10ms. The graph can't be generated due to the absence of active survey data in the current location. Please ensure that active survey configuration is correctly set and active during the scan.
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5.3.2.2.6. BANDWIDTH The Bandwidth control indicates whether minimum bandwidth requirements for the active survey are met throughout the coverage area. The graph can't be generated due to the absence of active survey data in the current location. Please ensure that active survey configuration is correctly set and active during the scan.
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5.3.2.2.7. PACKET LOSS The packet loss rate is the percentage of packets that do not reach their destination which are (usually) retransmitted. Packet loss has a negative impact on network performance. When a packet does not reach its destination, packet retransmission is usually requested by the recipient, adding additional time to complete the transmission. Packet loss rates under 10% are acceptable and will have a negligible impact on network performance in most cases. The graph can't be generated due to the absence of active survey data in the current location. Please ensure that active survey configuration is correctly set and active during the scan.
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5.3.2.2.8. ACCESS POINT ROAMING When an existing wireless network coverage area exceeds the range of a single access point, additional access points must be deployed. The process of switching from an access point with decreasing signal strength to one with a better signal while staying on the same network is called Roaming. Roaming allows a client to stay connected to the network and maintain communication when moving beyond the range of the currently connected access point into the range of another broadcasting the same network. The graph can't be generated due to the absence of active survey data in the current location. Please ensure that active survey configuration is correctly set and active during the scan.
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5.3.3. SURVEY 5.3.3.1. RSSI HEATMAP Signal Strength translates as how efficiently the network is reaching the surveyed area, indicating how the Umanizales network is received at each location. Signal strength values range from 0 db to -100db, being -100db the worse performance. The color scheme is shown below the image.
Signal Strength Heatmap for Umanizales Network
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5.3.3.2. NUMBER OF APS The following image shows the number of access points that were detected within the surveyed area granting access to the Umanizales network. The graph reveals the existing signal overlapping from the different access points granting access to the same network.
Number of APs for Umanizales Network
Number of APs
1
2
3
4
5
6
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7
8
9
10
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5.3.3.3. AP COVERAGE The following image shows the color coded coverage of every AP propagating the Umanizales network. If coverage from two or more channels overlap throughout the surveyed area, then the stronger signal channel is displayed. Using this graph, you will be able to analyze the appropriate coverage distribution.
AP Coverage for Umanizales Network
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Access Point 90:6C:AC:FA:93:63 92:4C:A5:94:9A:23 92:4C:A5:94:9E:6D 92:4C:A5:94:A1:BB 92:4C:A5:94:AC:FB
Access Point 90:6C:AC:FA:C2:2A 92:4C:A5:94:9A:6B 92:4C:A5:94:9E:7F 92:4C:A5:94:A1:CD A2:4C:A5:94:99:ED
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Access Point 92:4C:A5:94:99:81 92:4C:A5:94:9D:DD 92:4C:A5:94:A0:9B 92:4C:A5:94:A6:71 C2:6C:AC:F4:43:77
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5.3.3.4. CHANNEL COVERAGE The following image shows the coverage range for every channel in the Umanizales network. If coverage from two or more channels overlap throughout the surveyed area, then the stronger signal channel is display.
Channel Coverage for Umanizales Network.
Channel
1
3
6
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9
11
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5.3.3.5. CHANNEL OVERLAP The following image shows the coverage area for each operative channel on the Umanizales network, and the signal overlapping between two or more channels throughout the surveyed area.
Channel Overlap for Umanizales Network
Channel
1
2
3
4
5
6
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7
8
9
10
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5.3.3.6. DETAILED GRID In the following image, the blueprint associated to the surveyed area is divided into quadrants. Each quadrant shows the collected information in that grid.
Detailed Grid for Umanizales Location
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C0 D0 E0 F0 G1 H3 I4 A5 I5 A6 J6 A7 I7 J7 H8 I8 A9 G9 H9 A10 B10 C10 F10 G10 C11 D11 E11 F11
SURVEY POINTS 1 1 1 2 1 1 1 1 1 1 1 2 3 2 3 3 2 3 2 3 5 2 2 3 3 4 5 5
BEST RSSI -69 -80 -76 -64 -58 -62 -58 -80 -69 -63 -71 -75 -70 -62 -55 -58 -64 -71 -60 -69 -64 -62 -61 -59 -69 -52 -56 -53
AVG RSSI -72 -80 -84 -80 -75 -75 -71 -80 -77 -76 -78 -82 -80 -78 -71 -74 -73 -78 -74 -78 -77 -74 -74 -76 -75 -71 -74 -76
NETWORKS (SSIDS)
APS
Umanizales Umanizales Umanizales Umanizales Umanizales Umanizales Umanizales Umanizales Umanizales Umanizales Umanizales Umanizales Umanizales Umanizales Umanizales Umanizales Umanizales Umanizales Umanizales Umanizales Umanizales Umanizales Umanizales Umanizales Umanizales Umanizales Umanizales Umanizales
2 1 4 5 7 5 4 2 7 3 4 3 6 6 4 6 3 5 4 4 4 3 4 6 3 5 7 6
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DATA RATE (MAX) 260 195 260 260 260 260 260 195 260 195 260 195 260 260 195 260 195 260 195 260 195 195 260 260 195 195 260 260
65
5.3.3.7. SNR HEATMAP The following image shows the Umanizales network's signal-to-noise ratio throughout the surveyed area. Signal-to-noise ratio measures the ratio between the Wi-Fi network signal strength and the background noise. Higher noise levels will result in a larger negative impact on communications. This parameter offers valuable information on the effectiveness of communications. These values range from 0 to 100, being 100 the best possible communication quality.
The graph can't be generated due to the absence of the required data.
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5.3.3.8. DATA RATE HEATMAP The following image shows the area covered by the APs based on their data transfer rates for the Umanizales network throughout the surveyed area. Data rate helps determine the maximum data transmission speed among the wireless devices connected to a Wi-Fi network. This value allows you to establish how consistent a network is when transmitting data across the coverage area, and helps you find those areas where these values greatly differ or the network performance significantly decreases.
Data Rate for Umanizales Network
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Data Rate 195
Data Rate 260
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5.3.3.9. CELL DENSITY HEATMAP The following image shows a heatmap revealing the distribution of all client devices connected to the APs propagating the Umanizales network. Cell density allows you to spot which zones have the higher number of client devices connected to the network by showing its saturation. It provides useful information to allow for an even AP distribution according to actual usage.
The graph can't be generated due to the absence of the required data.
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5.3.3.10. RETRIES RATE HEATMAP In an ideal Wi-Fi communication, all sent data packets reach their destination. Otherwise, poor transmission, interferences or any other communication problems can cause the dropped packets to be retransmitted for a correct data transmission. The larger the number of retransmitted or forwarded packets, the larger the communication latency will be, resulting in a lower communication quality. The following image shows the areas where packet loss is experienced within Umanizales network, based on packet retry rate.
The graph can't be generated due to the absence of the required data.
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5.3.3.11. BANDWIDTH Bandwidth indicates the amount of data being transmitted through Umanizales network for each area within the network site range. Bandwidth is measured in kilobytes per seconds, KB/s (1MB/s=1000KB/s), where a higher value translates as a better network performance.
The graph can't be generated due to the absence of active survey data in the current location. Please ensure that active survey configuration is correctly set and active during the scan.
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5.3.3.12. LATENCY Latency indicates the time delay experienced in the data transfer through Umanizales network for each area within the network site range. When a data packet is sent, it is received by a receiving device that notifies the transmitting device that the packet has been successfully received. Latency is the period from the time a data packet is sent to the time the packet reception confirmation is received. Latency is measured in milliseconds (ms). The higher the latency, the lowest the network performance will be. High latency values negatively impact real-time application performance, such as video-conferencing and VoIP communications.
The graph can't be generated due to the absence of active survey data in the current location. Please ensure that active survey configuration is correctly set and active during the scan.
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5.3.3.13. PACKET LOSS In an ideal data communication, all sent data packets reach their destination; otherwise there is a packet loss that negatively impacts the data transmission performance, hence the overall network performance. When a data packet is lost, if required by the protocol, it should be re-transmitted until a successful reception notification is received. This increases the amount of time necessary for a data unit to be transmitted, reducing the amount of data that can be transmitted per unit of time. The higher this value is, the lower the network performance will be. The following image shows the areas where data packet loss is experienced within Umanizales network site range.
The graph can't be generated due to the absence of active survey data in the current location. Please ensure that active survey configuration is correctly set and active during the scan.
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5.3.3.14. ROAMING Data roaming in a Wi-Fi network infrastructure is the ability of a client device to move around within a multiple access point network's coverage area without disconnections. To ensure roaming in a multiple access point Wi-Fi network, access points' coverage ranges should overlap. Accordingly, a moving client device will have continuous network coverage, and based on the device's internal settings and access point configuration, network access will be granted through the different access points across the coverage area. The following image shows all Umanizales network access points to which the device has been connected to while itinerating. The graph can't be generated due to the absence of active survey data in the current location. Please ensure that active survey configuration is correctly set and active during the scan.
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UM PROJECT:
RED WIFI UM DATE:
2/21/2019 TRIAL EVALUATION
Content 1. Site Survey Summary .......................................................................................................................... 5 1.1. Wireless network survey information ......................................................................................... 5 1.2. Summary of detected networks .................................................................................................. 6 2. Networks ...........................................................................................................................................10 3. Access Points .....................................................................................................................................12 4. Wireless predictive planning .............................................................................................................15 4.1. Location planning: OSCD ASWF .................................................................................................15 4.1.1. Planning details ...................................................................................................................15 4.1.2. Planning frequency band: 2.4 Ghz ......................................................................................16 4.1.2.1. APs RSSI coverage ........................................................................................................16 4.1.2.2. Number of APs .............................................................................................................17 4.1.2.3. AP Coverage .................................................................................................................18 4.1.2.4. Channel coverage.........................................................................................................19 4.1.2.5. Signal-to-interference ratio .........................................................................................20 4.1.3. Planning frequency band: 5 Ghz .........................................................................................21 4.1.3.1. APs RSSI coverage ........................................................................................................21 4.1.3.2. Number of APs .............................................................................................................22 4.1.3.3. AP Coverage .................................................................................................................23 4.1.3.4. Channel coverage.........................................................................................................24 4.1.3.5. Signal-to-interference ratio .........................................................................................25 5. Location Survey: OSCD ASWF ...........................................................................................................26 5.1. Location details ..........................................................................................................................26 5.1.1. Survey Route .......................................................................................................................27 5.1.2. "OSCD ASWF" Access Point Position ...................................................................................29 5.2. Radio frequency spectrum .........................................................................................................31 5.2.1. 2.4GHz .................................................................................................................................32 5.2.2. 5GHz ....................................................................................................................................33 5.3. Network Survey: Umanizales .....................................................................................................34
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5.3.1. Network Details ..................................................................................................................34 5.3.1.1. AP-based Information ..................................................................................................34 5.3.1.2. Channel-based Information .........................................................................................35 5.3.1.3. "Umanizales" Access Point Position.............................................................................36 5.3.2. WiFi Quality .........................................................................................................................38 5.3.2.1. Web Browsing WiFi requirements ...............................................................................38 5.3.2.1.1. RSSI Coverage........................................................................................................39 5.3.2.1.2. Simultaneous RSSI Coverage.................................................................................40 5.3.2.1.3. Channel Overlap....................................................................................................41 5.3.2.1.4. Co-Channel Interference .......................................................................................42 5.3.2.1.5. Latency ..................................................................................................................44 5.3.2.1.6. Bandwidth .............................................................................................................45 5.3.2.1.7. Packet Loss ............................................................................................................46 5.3.2.1.8. Access Point Roaming ...........................................................................................47 5.3.2.2. VoIP over WiFi requirements .......................................................................................48 5.3.2.2.1. RSSI Coverage........................................................................................................49 5.3.2.2.2. Simultaneous RSSI Coverage.................................................................................50 5.3.2.2.3. Channel Overlap....................................................................................................51 5.3.2.2.4. Co-Channel Interference .......................................................................................52 5.3.2.2.5. Latency ..................................................................................................................54 5.3.2.2.6. Bandwidth .............................................................................................................55 5.3.2.2.7. Packet Loss ............................................................................................................56 5.3.2.2.8. Access Point Roaming ...........................................................................................57 5.3.3. Survey..................................................................................................................................58 5.3.3.1. RSSI Heatmap ...............................................................................................................58 5.3.3.2. Number of APs .............................................................................................................59 5.3.3.3. AP Coverage .................................................................................................................60 5.3.3.4. Channel Coverage ........................................................................................................62 5.3.3.5. Channel Overlap...........................................................................................................63
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5.3.3.6. Detailed Grid ................................................................................................................64 5.3.3.7. SNR Heatmap ...............................................................................................................66 5.3.3.8. Data Rate Heatmap ......................................................................................................67 5.3.3.9. Cell Density Heatmap ...................................................................................................69 5.3.3.10. Retries Rate Heatmap ................................................................................................70 5.3.3.11. Bandwidth ..................................................................................................................71 5.3.3.12. Latency .......................................................................................................................72 5.3.3.13. Packet Loss .................................................................................................................73 5.3.3.14. Roaming .....................................................................................................................74
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1. SITE SURVEY SUMMARY 1.1. WIRELESS NETWORK SURVEY INFORMATION This section contains general information regarding the wireless environment analysis using Acrylic WiFi Heatmaps.
Project Name Client Description Data Selected Locations Selected Scans Selected Stations
RED WIFI UM UM PRUEBA COBERTURA 4 PISO 21/02/2019 1 1 15
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1.2. SUMMARY OF DETECTED NETWORKS The following table summarizes Networks, physical Access Points, and MAC Addresses (BSSIDs) providing network access throughout the survey locations: - Location: Physical area where a survey was taken. - Networks: Number of Networks detected. - Access Points (APs): Number of physical access points detected. - BSSIDs: Networks provided by those physical access points as indicated by different MAC addresses. The number of BSSIDs can exceed the number of physical APs because a single AP can propagate more than one network by using different MAC addresses.
LOCATION OSCD ASWF Total
NETWORKS 48 48
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APS 97 97
BSSIDS 114 114
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The following graph shows a comparison between the number of networks, physical APs and BSSIDs at each location.
Summary: Networks, APs and BSSIDs 114
97 120
Networks
100
APs
80 60
BSSIDs
48
40 20 0 OSCD ASWF
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The following two graphs show the number of BSSIDs detected at each Channel, in the 2.4GHz and in the 5GHz frequency bands respectively.
BSSIDs by Channel - 2.4GHz 50
46
45
40
BSSIDs
35 30 22
25 17
20 15 10
6
5
1
9 4
3
1
2
7
8
1
0
2
0
0 1
2
3
4
5
6
9
10
11
12
13
14
Channel
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The following graph shows the number of BSSIDs detected, ordered by maximum Data Rate registered value.
BSSID by maximum Data Rate 450
2
Maximum Data Rate
300
4
260
11
216,7
23
195
51
150
2
144,4
14
72,2
5
54
2 0
10
20
30
40
50
60
BSSIDs
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2. NETWORKS The following table contains relevant information about the networks under study: - SSID: Network identifier offered by the BSSID. - BSSID: Unique device identifier (Basic Service Set Identifier) - Channel: Identifier of the frequency on which the network is operating. - Frequency: Value of frequency in which the network channel is operating, expressed in Mhz. - Average RSSI: Average Signal Strength detected on each device during the survey. - Maximum RSSI: Maximum Signal Strength detected on each device during the survey. - Minimum RSSI: Minimum Signal Strength detected on each device during the survey. - Security: Types of authentication and encryption supported by the network. - WPS: Wi-Fi Protected Setup version supported by the network. SSID
1
BSSID
CHAN
FREQ
RSSI AVG
RSSI MAX
RSSI MIN
90:6C:AC:FA:93:63
1
2412
-80
-58
-95
90:6C:AC:FA:C2:2A
9
2452
-85
-81
-89
92:4C:A5:94:99:81
1
2412
-83
-80
-87
92:4C:A5:94:9A:23
1
2412
-75
-69
-85
92:4C:A5:94:9A:6B
11
2462
-74
-69
-84
92:4C:A5:94:9D:DD
11
2462
-76
-63
-86
92:4C:A5:94:9E:6D
1
2412
-77
-71
-87
92:4C:A5:94:9E:7F
1
2412
-86
-86
-87
92:4C:A5:94:A0:9B
6
2437
-84
-84
-84
92:4C:A5:94:A1:BB
6
2437
-64
-52
-95
92:4C:A5:94:A1:CD
11
2462
-78
-69
-84
92:4C:A5:94:A6:71
6
2437
-84
-84
-84
92:4C:A5:94:AC:FB
1
2412
-82
-81
-85
A2:4C:A5:94:99:ED
1
2412
-83
-82
-85
Umanizales
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SECURITY
WPS
WPA2 PersonalCCMP WPA2 PersonalCCMP WPA2 PersonalCCMP WPA2 PersonalCCMP WPA2 PersonalCCMP WPA2 PersonalCCMP WPA2 PersonalCCMP WPA2 PersonalCCMP WPA2 PersonalCCMP WPA2 PersonalCCMP WPA2 PersonalCCMP WPA2 PersonalCCMP WPA2 PersonalCCMP WPA2 PersonalCCMP
10
SSID
BSSID
CHAN
FREQ
RSSI AVG
RSSI MAX
RSSI MIN
SECURITY
C2:6C:AC:F4:43:77
3
2422
-84
-84
-84
WPA2 PersonalCCMP
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WPS
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3. ACCESS POINTS This section shows information about the physical access points detected during a survey, grouping all BSSIDs that are managed by the same physical device, as well as the number of clients connected to each one of them during the survey. For each physical access point, its manufacturer is shown, as well as all its managed networks. For each physical access point: - BSSID: Associated MAC addresses granting network access. - SSID: Network identifier offered by the BSSID. - Channel: Identifier of the frequency associated to the network. - Frequency: Value of the frequency associated to the network. - 802.11: Supported standard - Clients: Number of connected clients (if monitoring is performed on Monitor Mode or Airpcap)
90:6C:AC:FA:93:6- / FORTINET. INC. BSSID 90:6C:AC:FA:93:63
SSID Umanizales
CHAN 1
FREQ 2412
802.11 g, n
SSID Umanizales
CHAN 9
FREQ 2452
802.11 g, n
SSID Umanizales
CHAN 1
FREQ 2412
802.11 g, n
SSID Umanizales
CHAN 1
FREQ 2412
802.11 g, n
SSID Umanizales
CHAN 11
FREQ 2462
802.11 g, n
90:6C:AC:FA:C2:2- / FORTINET. INC. BSSID 90:6C:AC:FA:C2:2A
92:4C:A5:94:99:8BSSID 92:4C:A5:94:99:81
92:4C:A5:94:9A:2BSSID 92:4C:A5:94:9A:23
92:4C:A5:94:9A:6BSSID 92:4C:A5:94:9A:6B
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92:4C:A5:94:9D:DBSSID 92:4C:A5:94:9D:DD
SSID Umanizales
CHAN 11
FREQ 2462
802.11 g, n
SSID Umanizales
CHAN 1
FREQ 2412
802.11 g, n
SSID Umanizales
CHAN 1
FREQ 2412
802.11 g, n
SSID Umanizales
CHAN 6
FREQ 2437
802.11 g, n
SSID Umanizales
CHAN 6
FREQ 2437
802.11 g, n
SSID Umanizales
CHAN 11
FREQ 2462
802.11 g, n
SSID Umanizales
CHAN 6
FREQ 2437
802.11 g, n
SSID Umanizales
CHAN 1
FREQ 2412
802.11 g, n
92:4C:A5:94:9E:6BSSID 92:4C:A5:94:9E:6D
92:4C:A5:94:9E:7BSSID 92:4C:A5:94:9E:7F
92:4C:A5:94:A0:9BSSID 92:4C:A5:94:A0:9B
92:4C:A5:94:A1:BBSSID 92:4C:A5:94:A1:BB
92:4C:A5:94:A1:CBSSID 92:4C:A5:94:A1:CD
92:4C:A5:94:A6:7BSSID 92:4C:A5:94:A6:71
92:4C:A5:94:AC:FBSSID 92:4C:A5:94:AC:FB
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A2:4C:A5:94:99:EBSSID A2:4C:A5:94:99:ED
SSID Umanizales
CHAN 1
FREQ 2412
802.11 g, n
SSID Umanizales
CHAN 3
FREQ 2422
802.11 g, n
C2:6C:AC:F4:43:7BSSID C2:6C:AC:F4:43:77
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4. WIRELESS PREDICTIVE PLANNING This section contains the digraphs, plans and heat maps of the wireless infrastructure design. The planning is the first stage in a wifi network installation, where in a theoretical way, the locations of the access points as well as the conditions and constructive elements of the area where the wireless infrastructure is going to be deployed are approached.
4.1. LOCATION PLANNING: OSCD ASWF For each location, we have a plan of where to locate the access points. 4.1.1. PLANNING DETAILS This is the blueprint on which planning has been carried out. The constructive elements drawn are detailed as well as the location of the access points for its later analysis and validation using the planning algorithms. Una buena infraestructura WiFi necesita una buena intensidad de señal, por lo que es importante distribuir los APs de forma que las áreas de interés dispongan de buena cobertura y sean capaces de cubrir todo el area sin que muros o paredes degraden la emisión.
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4.1.2. PLANNING FREQUENCY BAND: 2.4 GHZ The results of the planning simulations for the specified frequency band are shown below. 4.1.2.1. APS RSSI COVERAGE This heat map shows the RSSI (Received Signal Strength) that will exist in a zone. It is considered an acceptable RSSI -65dBm, and a good one starting at -55dBm.
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4.1.2.2. NUMBER OF APS This shows the number of available APs in each zone, De modo que se obtiene la redundancia disponible para cada lugar.
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4.1.2.3. AP COVERAGE This option shows the area of influence for each AP. That is, the AP that is received with the best signal in each zone. This visualization makes it possible to visualize the area covered by each AP, allowing the identification of those that, due to their small radius of action, are being underused.
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4.1.2.4. CHANNEL COVERAGE This option shows which channel is used within each zone. This visualization helps the planning of APs to avoid interference. The contact between zones with nearby channels will cause interferences and degradation of network performance.
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4.1.2.5. SIGNAL-TO-INTERFERENCE RATIO This option shows areas that will suffer performance degradation due to interferences with other APs.
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4.1.3. PLANNING FREQUENCY BAND: 5 GHZ The results of the planning simulations for the specified frequency band are shown below. 4.1.3.1. APS RSSI COVERAGE This heat map shows the RSSI (Received Signal Strength) that will exist in a zone. It is considered an acceptable RSSI -65dBm, and a good one starting at -55dBm.
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4.1.3.2. NUMBER OF APS This shows the number of available APs in each zone, De modo que se obtiene la redundancia disponible para cada lugar.
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4.1.3.3. AP COVERAGE This option shows the area of influence for each AP. That is, the AP that is received with the best signal in each zone. This visualization makes it possible to visualize the area covered by each AP, allowing the identification of those that, due to their small radius of action, are being underused.
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4.1.3.4. CHANNEL COVERAGE This option shows which channel is used within each zone. This visualization helps the planning of APs to avoid interference. The contact between zones with nearby channels will cause interferences and degradation of network performance.
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4.1.3.5. SIGNAL-TO-INTERFERENCE RATIO This option shows areas that will suffer performance degradation due to interferences with other APs.
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5. LOCATION SURVEY: OSCD ASWF 5.1. LOCATION DETAILS Short data related to the OSCD ASWF Location Location Name OSCD ASWF Description DOSOS Selected Scans at this Scan 1 Location
Blueprint for the location OSCD ASWF
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5.1.1. SURVEY ROUTE The following image shows the path followed at the OSCD ASWF location during the site survey, which indicates all locations where data was collected to be later analyzed.
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5.1.2. "OSCD ASWF" ACCESS POINT POSITION The following image shows the approximate positions within the OSCD ASWF location of all access points identified during the site survey. These positions are manually configured, or otherwise are automatically estimated based on the measured data.
Physical APs Position for OSCD ASWF Location
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
BSSID C2:6C:AC:F4:43:77 92:4C:A5:94:A6:71 92:4C:A5:94:A1:CD 92:4C:A5:94:A1:BB 92:4C:A5:94:A0:9B 92:4C:A5:94:9E:7F 92:4C:A5:94:9E:6D 92:4C:A5:94:9D:DD 92:4C:A5:94:9A:6B 90:6C:AC:FA:C2:2A 90:6C:AC:FA:93:63 A2:4C:A5:94:99:ED 92:4C:A5:94:AC:FB 92:4C:A5:94:9A:23 92:4C:A5:94:99:81
SSID Umanizales Umanizales Umanizales Umanizales Umanizales Umanizales Umanizales Umanizales Umanizales Umanizales Umanizales Umanizales Umanizales Umanizales Umanizales
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VENDOR
Fortinet. Inc. Fortinet. Inc.
CHAN 3 6 11 6 6 1 1 11 11 9 1 1 1 1 1
30
5.2. RADIO FREQUENCY SPECTRUM This section represents the information collected from radio electrical medium for the 2.4 and 5Ghz frequency bands. Wireless transmissions operate on one of these bands, according to the 802.11 communication standard being implemented. For each band, an access point operates in a frequency subset. Depending on the access point configuration, and the 802.11 standard revision, networks can operate in frequency bandwidths of 20, 40, 80, or even 160 Mhz. Therefore, an access point that is set to operate on channel 6 of the 2.4Ghz frequency band, with a 20Mhz bandwidth, will use the frequencies of the channels 4,5,6,7, and 8 (two channels to the left and another two channels to the right from the central channel 6). Wi-Fi communications quality is decreased in an environment of coexisting radio transmission on the same frequencies. These emissions may come from neighboring wireless networks or from any other source. This section displays all emissions in the operating frequency bands, whether coming from Wi-Fi devices or not. The areas where radio emissions are detected but no access point is in operation, suggest the presence of devices emitting in the same range of frequencies that are negatively impacting the communications quality.
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5.2.1. 2.4GHZ The following graph displays the 2.4GHz band radio emissions used in Wi-Fi communications. This frequency range is widely used by multiple wireless technologies. Many devices such as Bluetooth headsets, microwave ovens, surveillance cameras, baby monitors, wireless phones, drone remote controls, among others, operate on the 2.4GHz band.
The graph can't be generated due to the absence of spectrum data in the current location.
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5.2.2. 5GHZ The following graph displays the 5GHz band radio emissions used in Wi-Fi communications. This frequency range is widely used by multiple wireless technologies. However, the 2.4Ghz frequency range is more often used than the 5Ghz band.
The graph can't be generated due to the absence of spectrum data in the current location.
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5.3. NETWORK SURVEY: UMANIZALES 5.3.1. NETWORK DETAILS 5.3.1.1. AP-BASED INFORMATION The following table contains information related to the Umanizales network, which is organized based on its APs: - SSID: Network identifier offered by the BSSID. - BSSID: Associated MAC addresses granting network access. - Channel: Identifier of the frequency associated to the network. - Frequency: Value of the frequency associated to the network. - Security: Types of authentication and encryption supported by the network. - Vendor: Device manufacturer.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
SSID BSSID 90:6C:AC:FA:93:63 90:6C:AC:FA:C2:2A 92:4C:A5:94:99:81 92:4C:A5:94:9A:23 92:4C:A5:94:9A:6B 92:4C:A5:94:9D:DD 92:4C:A5:94:9E:6D 92:4C:A5:94:9E:7F 92:4C:A5:94:A0:9B 92:4C:A5:94:A1:BB 92:4C:A5:94:A1:CD 92:4C:A5:94:A6:71 92:4C:A5:94:AC:FB A2:4C:A5:94:99:ED C2:6C:AC:F4:43:77
CHANNEL 1 9 1 1 11 11 1 1 6 6 11 6 1 1 3
FREQ 2412 2452 2412 2412 2462 2462 2412 2412 2437 2437 2462 2437 2412 2412 2422
UMANIZALES SECURITY WPA2 Personal-CCMP WPA2 Personal-CCMP WPA2 Personal-CCMP WPA2 Personal-CCMP WPA2 Personal-CCMP WPA2 Personal-CCMP WPA2 Personal-CCMP WPA2 Personal-CCMP WPA2 Personal-CCMP WPA2 Personal-CCMP WPA2 Personal-CCMP WPA2 Personal-CCMP WPA2 Personal-CCMP WPA2 Personal-CCMP WPA2 Personal-CCMP
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VENDOR Fortinet. Inc. Fortinet. Inc.
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5.3.1.2. CHANNEL-BASED INFORMATION The following table contains Umanizales network related information, which is organized based on the transmitting channels/frequencies: - SSID: Network identifier offered by the BSSID. - Channel: Identifier of the frequency associated to the network. - Frequency: Value of the frequency associated to the network. - BSSID: Associated MAC addresses granting network access. - Vendor: Device manufacturer. SSID
UMANIZALES
CHANNEL
FREQUENCY
1
2412
3
2422
6
2437
9
2452
11
2462
BSSID 90:6C:AC:FA:93:63 92:4C:A5:94:99:81 92:4C:A5:94:9A:23 92:4C:A5:94:9E:6D 92:4C:A5:94:9E:7F 92:4C:A5:94:AC:FB A2:4C:A5:94:99:ED C2:6C:AC:F4:43:77 92:4C:A5:94:A0:9B 92:4C:A5:94:A1:BB 92:4C:A5:94:A6:71 90:6C:AC:FA:C2:2A 92:4C:A5:94:9A:6B 92:4C:A5:94:9D:DD 92:4C:A5:94:A1:CD
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VENDOR Fortinet. Inc.
Fortinet. Inc.
35
5.3.1.3. "UMANIZALES" ACCESS POINT POSITION The following image shows the approximate positions of all access points identified during the site survey which are publishing the network Umanizales. These positions are manually configured, or otherwise are automatically estimated based on the measured data.
Physical APs Position for Umanizales Network
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
BSSID C2:6C:AC:F4:43:77 92:4C:A5:94:A6:71 92:4C:A5:94:A1:CD 92:4C:A5:94:A1:BB 92:4C:A5:94:A0:9B 92:4C:A5:94:9E:7F 92:4C:A5:94:9E:6D 92:4C:A5:94:9D:DD 92:4C:A5:94:9A:6B 90:6C:AC:FA:C2:2A 90:6C:AC:FA:93:63 A2:4C:A5:94:99:ED 92:4C:A5:94:AC:FB 92:4C:A5:94:9A:23 92:4C:A5:94:99:81
SSID Umanizales Umanizales Umanizales Umanizales Umanizales Umanizales Umanizales Umanizales Umanizales Umanizales Umanizales Umanizales Umanizales Umanizales Umanizales
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VENDOR
Fortinet. Inc. Fortinet. Inc.
CHAN 3 6 11 6 6 1 1 11 11 9 1 1 1 1 1
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5.3.2. WIFI QUALITY 5.3.2.1. WEB BROWSING WIFI REQUIREMENTS ASSESSMENT CONTROL RSSI Coverage Simultaneous RSSI Coverage Channel Overlap Co-Channel Interference Latency Bandwidth Packet Loss Access Point Roaming OVERALL WIFI QUALITY
% 16% 16% 64% 100% N/A N/A N/A N/A 49%
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QUALITY Bad Bad Bad Excellent N/A N/A N/A N/A BAD
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5.3.2.1.1. RSSI COVERAGE The RSSI Coverage control displays those areas where the signal strength received from any of the selected access points falls below the selected threshold value. Signal strength has a significant impact on the quality of communications. Signal strength is measured in dBm: the power ratio with reference to one milliwatt and is indicated in the range from 0 dBm (stronger) to -100 dBm (weaker).
RSSI Coverage for the network Umanizales
Pass Fail
RSSI Required greater than or equal -65 dBm
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5.3.2.1.2. SIMULTANEOUS RSSI COVERAGE The Simultaneous AP Coverage control displays those areas where signal strength received by any of the network access points is equal or lower than the predetermined threshold value. To ensure dependable wireless communications, it is necessary, under certain circumstances, that all the points in the coverage area can access a certain number of access points within the network infrastructure, preventing channel overlapping, with at least a minimum signal strength.
Simultaneous RSSI Coverage for the network Umanizales
Pass
RSSI Required greater than or equal -65 dBm Simultaneous APs Required greater than or equal 1 APs
Fail
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5.3.2.1.3. CHANNEL OVERLAP The Channel Overlapping control shows those areas where adjacent interference requirements are met. An AP is considered to have adjacent interference when some of its transmitted frequencies overlap with another AP transmitting on a different channel over the same band.
Channel Overlap for the network Umanizales
Pass
AP Overlap less than or equal 0 APs Gap RSSI greater than or equal 20 dBm
Fail
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5.3.2.1.4. CO-CHANNEL INTERFERENCE This control displays those areas where co-channel interference parameters are met. An AP is considered to have co-channel interference when there is another AP transmitting on the same channel within its wireless range. When co-channel overlap exists, multiple access points must share the frequency. Since only one access point can transmit on a given frequency at a time, when an access point has data to transmit, it must first analyze the spectrum to determine if there is another device currently using the chosen channel. If it finds another device currently using the channel, it must wait for it to finish before it can use it. This significantly reduces the available bandwidth to each access point since the available bandwidth must be divided among all the access points using that channel.
Co-Channel Interference for the network Umanizales
Pass
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Fail
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5.3.2.1.5. LATENCY Latency is the time interval between sending a data packet and receiving a response (round trip time). In this case, latency is the amount of time a packet takes to be transmitted and received back in the wireless space. Acceptable latency values range from 1-10ms. The graph can't be generated due to the absence of active survey data in the current location. Please ensure that active survey configuration is correctly set and active during the scan.
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5.3.2.1.6. BANDWIDTH The Bandwidth control indicates whether minimum bandwidth requirements for the active survey are met throughout the coverage area. The graph can't be generated due to the absence of active survey data in the current location. Please ensure that active survey configuration is correctly set and active during the scan.
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5.3.2.1.7. PACKET LOSS The packet loss rate is the percentage of packets that do not reach their destination which are (usually) retransmitted. Packet loss has a negative impact on network performance. When a packet does not reach its destination, packet retransmission is usually requested by the recipient, adding additional time to complete the transmission. Packet loss rates under 10% are acceptable and will have a negligible impact on network performance in most cases. The graph can't be generated due to the absence of active survey data in the current location. Please ensure that active survey configuration is correctly set and active during the scan.
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5.3.2.1.8. ACCESS POINT ROAMING When an existing wireless network coverage area exceeds the range of a single access point, additional access points must be deployed. The process of switching from an access point with decreasing signal strength to one with a better signal while staying on the same network is called Roaming. Roaming allows a client to stay connected to the network and maintain communication when moving beyond the range of the currently connected access point into the range of another broadcasting the same network. The graph can't be generated due to the absence of active survey data in the current location. Please ensure that active survey configuration is correctly set and active during the scan.
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5.3.2.2. VOIP OVER WIFI REQUIREMENTS ASSESSMENT CONTROL RSSI Coverage Simultaneous RSSI Coverage Channel Overlap Co-Channel Interference Latency Bandwidth Packet Loss Access Point Roaming OVERALL WIFI QUALITY
% 6% 2% 64% 100% N/A N/A N/A N/A 43%
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QUALITY Bad Bad Bad Excellent N/A N/A N/A N/A BAD
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5.3.2.2.1. RSSI COVERAGE The RSSI Coverage control displays those areas where the signal strength received from any of the selected access points falls below the selected threshold value. Signal strength has a significant impact on the quality of communications. Signal strength is measured in dBm: the power ratio with reference to one milliwatt and is indicated in the range from 0 dBm (stronger) to -100 dBm (weaker).
RSSI Coverage for the network Umanizales
Pass Fail
RSSI Required greater than or equal -60 dBm
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5.3.2.2.2. SIMULTANEOUS RSSI COVERAGE The Simultaneous AP Coverage control displays those areas where signal strength received by any of the network access points is equal or lower than the predetermined threshold value. To ensure dependable wireless communications, it is necessary, under certain circumstances, that all the points in the coverage area can access a certain number of access points within the network infrastructure, preventing channel overlapping, with at least a minimum signal strength.
Simultaneous RSSI Coverage for the network Umanizales
Pass
RSSI Required greater than or equal -65 dBm Simultaneous APs Required greater than or equal 2 APs
Fail
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5.3.2.2.3. CHANNEL OVERLAP The Channel Overlapping control shows those areas where adjacent interference requirements are met. An AP is considered to have adjacent interference when some of its transmitted frequencies overlap with another AP transmitting on a different channel over the same band.
Channel Overlap for the network Umanizales
Pass
AP Overlap less than or equal 0 APs Gap RSSI greater than or equal 20 dBm
Fail
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5.3.2.2.4. CO-CHANNEL INTERFERENCE This control displays those areas where co-channel interference parameters are met. An AP is considered to have co-channel interference when there is another AP transmitting on the same channel within its wireless range. When co-channel overlap exists, multiple access points must share the frequency. Since only one access point can transmit on a given frequency at a time, when an access point has data to transmit, it must first analyze the spectrum to determine if there is another device currently using the chosen channel. If it finds another device currently using the channel, it must wait for it to finish before it can use it. This significantly reduces the available bandwidth to each access point since the available bandwidth must be divided among all the access points using that channel.
Co-Channel Interference for the network Umanizales
Pass
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Fail
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5.3.2.2.5. LATENCY Latency is the time interval between sending a data packet and receiving a response (round trip time). In this case, latency is the amount of time a packet takes to be transmitted and received back in the wireless space. Acceptable latency values range from 1-10ms. The graph can't be generated due to the absence of active survey data in the current location. Please ensure that active survey configuration is correctly set and active during the scan.
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5.3.2.2.6. BANDWIDTH The Bandwidth control indicates whether minimum bandwidth requirements for the active survey are met throughout the coverage area. The graph can't be generated due to the absence of active survey data in the current location. Please ensure that active survey configuration is correctly set and active during the scan.
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5.3.2.2.7. PACKET LOSS The packet loss rate is the percentage of packets that do not reach their destination which are (usually) retransmitted. Packet loss has a negative impact on network performance. When a packet does not reach its destination, packet retransmission is usually requested by the recipient, adding additional time to complete the transmission. Packet loss rates under 10% are acceptable and will have a negligible impact on network performance in most cases. The graph can't be generated due to the absence of active survey data in the current location. Please ensure that active survey configuration is correctly set and active during the scan.
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5.3.2.2.8. ACCESS POINT ROAMING When an existing wireless network coverage area exceeds the range of a single access point, additional access points must be deployed. The process of switching from an access point with decreasing signal strength to one with a better signal while staying on the same network is called Roaming. Roaming allows a client to stay connected to the network and maintain communication when moving beyond the range of the currently connected access point into the range of another broadcasting the same network. The graph can't be generated due to the absence of active survey data in the current location. Please ensure that active survey configuration is correctly set and active during the scan.
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5.3.3. SURVEY 5.3.3.1. RSSI HEATMAP Signal Strength translates as how efficiently the network is reaching the surveyed area, indicating how the Umanizales network is received at each location. Signal strength values range from 0 db to -100db, being -100db the worse performance. The color scheme is shown below the image.
Signal Strength Heatmap for Umanizales Network
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5.3.3.2. NUMBER OF APS The following image shows the number of access points that were detected within the surveyed area granting access to the Umanizales network. The graph reveals the existing signal overlapping from the different access points granting access to the same network.
Number of APs for Umanizales Network
Number of APs
1
2
3
4
5
6
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7
8
9
10
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5.3.3.3. AP COVERAGE The following image shows the color coded coverage of every AP propagating the Umanizales network. If coverage from two or more channels overlap throughout the surveyed area, then the stronger signal channel is displayed. Using this graph, you will be able to analyze the appropriate coverage distribution.
AP Coverage for Umanizales Network
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Access Point 90:6C:AC:FA:93:63 92:4C:A5:94:9A:23 92:4C:A5:94:9E:6D 92:4C:A5:94:A1:BB 92:4C:A5:94:AC:FB
Access Point 90:6C:AC:FA:C2:2A 92:4C:A5:94:9A:6B 92:4C:A5:94:9E:7F 92:4C:A5:94:A1:CD A2:4C:A5:94:99:ED
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Access Point 92:4C:A5:94:99:81 92:4C:A5:94:9D:DD 92:4C:A5:94:A0:9B 92:4C:A5:94:A6:71 C2:6C:AC:F4:43:77
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5.3.3.4. CHANNEL COVERAGE The following image shows the coverage range for every channel in the Umanizales network. If coverage from two or more channels overlap throughout the surveyed area, then the stronger signal channel is display.
Channel Coverage for Umanizales Network.
Channel
1
3
6
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11
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5.3.3.5. CHANNEL OVERLAP The following image shows the coverage area for each operative channel on the Umanizales network, and the signal overlapping between two or more channels throughout the surveyed area.
Channel Overlap for Umanizales Network
Channel
1
2
3
4
5
6
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8
9
10
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5.3.3.6. DETAILED GRID In the following image, the blueprint associated to the surveyed area is divided into quadrants. Each quadrant shows the collected information in that grid.
Detailed Grid for Umanizales Location
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C0 D0 E0 F0 G1 H3 I4 A5 I5 A6 J6 A7 I7 J7 H8 I8 A9 G9 H9 A10 B10 C10 F10 G10 C11 D11 E11 F11
SURVEY POINTS 1 1 1 2 1 1 1 1 1 1 1 2 3 2 3 3 2 3 2 3 5 2 2 3 3 4 5 5
BEST RSSI -69 -80 -76 -64 -58 -62 -58 -80 -69 -63 -71 -75 -70 -62 -55 -58 -64 -71 -60 -69 -64 -62 -61 -59 -69 -52 -56 -53
AVG RSSI -72 -80 -84 -80 -75 -75 -71 -80 -77 -76 -78 -82 -80 -78 -71 -74 -73 -78 -74 -78 -77 -74 -74 -76 -75 -71 -74 -76
NETWORKS (SSIDS)
APS
Umanizales Umanizales Umanizales Umanizales Umanizales Umanizales Umanizales Umanizales Umanizales Umanizales Umanizales Umanizales Umanizales Umanizales Umanizales Umanizales Umanizales Umanizales Umanizales Umanizales Umanizales Umanizales Umanizales Umanizales Umanizales Umanizales Umanizales Umanizales
2 1 4 5 7 5 4 2 7 3 4 3 6 6 4 6 3 5 4 4 4 3 4 6 3 5 7 6
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DATA RATE (MAX) 260 195 260 260 260 260 260 195 260 195 260 195 260 260 195 260 195 260 195 260 195 195 260 260 195 195 260 260
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5.3.3.7. SNR HEATMAP The following image shows the Umanizales network's signal-to-noise ratio throughout the surveyed area. Signal-to-noise ratio measures the ratio between the Wi-Fi network signal strength and the background noise. Higher noise levels will result in a larger negative impact on communications. This parameter offers valuable information on the effectiveness of communications. These values range from 0 to 100, being 100 the best possible communication quality.
The graph can't be generated due to the absence of the required data.
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5.3.3.8. DATA RATE HEATMAP The following image shows the area covered by the APs based on their data transfer rates for the Umanizales network throughout the surveyed area. Data rate helps determine the maximum data transmission speed among the wireless devices connected to a Wi-Fi network. This value allows you to establish how consistent a network is when transmitting data across the coverage area, and helps you find those areas where these values greatly differ or the network performance significantly decreases.
Data Rate for Umanizales Network
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Data Rate 195
Data Rate 260
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5.3.3.9. CELL DENSITY HEATMAP The following image shows a heatmap revealing the distribution of all client devices connected to the APs propagating the Umanizales network. Cell density allows you to spot which zones have the higher number of client devices connected to the network by showing its saturation. It provides useful information to allow for an even AP distribution according to actual usage.
The graph can't be generated due to the absence of the required data.
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5.3.3.10. RETRIES RATE HEATMAP In an ideal Wi-Fi communication, all sent data packets reach their destination. Otherwise, poor transmission, interferences or any other communication problems can cause the dropped packets to be retransmitted for a correct data transmission. The larger the number of retransmitted or forwarded packets, the larger the communication latency will be, resulting in a lower communication quality. The following image shows the areas where packet loss is experienced within Umanizales network, based on packet retry rate.
The graph can't be generated due to the absence of the required data.
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5.3.3.11. BANDWIDTH Bandwidth indicates the amount of data being transmitted through Umanizales network for each area within the network site range. Bandwidth is measured in kilobytes per seconds, KB/s (1MB/s=1000KB/s), where a higher value translates as a better network performance.
The graph can't be generated due to the absence of active survey data in the current location. Please ensure that active survey configuration is correctly set and active during the scan.
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5.3.3.12. LATENCY Latency indicates the time delay experienced in the data transfer through Umanizales network for each area within the network site range. When a data packet is sent, it is received by a receiving device that notifies the transmitting device that the packet has been successfully received. Latency is the period from the time a data packet is sent to the time the packet reception confirmation is received. Latency is measured in milliseconds (ms). The higher the latency, the lowest the network performance will be. High latency values negatively impact real-time application performance, such as video-conferencing and VoIP communications.
The graph can't be generated due to the absence of active survey data in the current location. Please ensure that active survey configuration is correctly set and active during the scan.
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5.3.3.13. PACKET LOSS In an ideal data communication, all sent data packets reach their destination; otherwise there is a packet loss that negatively impacts the data transmission performance, hence the overall network performance. When a data packet is lost, if required by the protocol, it should be re-transmitted until a successful reception notification is received. This increases the amount of time necessary for a data unit to be transmitted, reducing the amount of data that can be transmitted per unit of time. The higher this value is, the lower the network performance will be. The following image shows the areas where data packet loss is experienced within Umanizales network site range.
The graph can't be generated due to the absence of active survey data in the current location. Please ensure that active survey configuration is correctly set and active during the scan.
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5.3.3.14. ROAMING Data roaming in a Wi-Fi network infrastructure is the ability of a client device to move around within a multiple access point network's coverage area without disconnections. To ensure roaming in a multiple access point Wi-Fi network, access points' coverage ranges should overlap. Accordingly, a moving client device will have continuous network coverage, and based on the device's internal settings and access point configuration, network access will be granted through the different access points across the coverage area. The following image shows all Umanizales network access points to which the device has been connected to while itinerating. The graph can't be generated due to the absence of active survey data in the current location. Please ensure that active survey configuration is correctly set and active during the scan.
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