Best-Practice Guide for IPTV in Hotel

7/28/2019 Best-Practice Guide for IPTV in Hotel

1/13

Best Practice Guide for Video inHotel Deployment


2/13

2

Best Practice Guide for Video

Application: Deployment of Video (Multicast or VoD)

over Wi-Fi in Hotel environment

Equipment:

ZoneDirectors

ZoneFlex 7962, 7363 Dual Band Access Point

MediaFlex 7111 Adapters

Basic Configuration:

Dedicate common SSID for data (2.4 GHz)

Dedicate AP unique SSID for video (5 GHz)


3/13

3

Configurations to optimize video

1. Turn off background scanning

2. Channel Management

3. Separate SSIDs to segment the 7111s

4. On 7111 turn off Adapter Management Self Configure

5. For the multiple 7111s that are connected to a 7962, the one with

the slowest zap throughput is the throughput you should estimateto get (being conservative).

6. Change Directed Broadcast Threshold to a value larger than thenumber of maximum client associated to the AP

7. Disable Mesh

8. For larger # of Adapter configuration, you can use the Quick-

config Adapter Script that we have created


4/13

4

Turn off background scanning

Recommendation is to TURN OFF background scanning

With background scanning ON, the AP will go away andscan every 20 seconds for a period of 30 msec. Duringthis period, there is a potential of video disturbance

Current software release locks the background scanning

of 5 & 2.4 GHz option together. Turning off backgroundscanning disables on both frequencies


5/13

5

5 GHz Channel Management

Manual Channel Selection

With automatic channel selection, the video can be interrupted

during channel optimization

If possible, use one of the higher powered channels (country

dependent)

US: 149 or higher (until 5 GHz DFS is approved)

EU: 100 or higher

40 MHz Channel

For proper video distribution,

we recommend that you

allocate 40 MHz for each

channel. The 5 GHz band hassufficient number of channels

for re-use even in the case of

40 MHz setting149


6/13

6

Separate SSIDs to segment the 7111s

Use different SSIDs amongstAPs to statically mapdifferent 7111s to thedesired AP.

Different SSIDs betweenfloors

Different SSIDs betweendifferent areas of thedeployment


7/137


8/138

Throughput Estimate and Streams

calculations

For multiple 7111s that are connected to a 7962, theone with the slowest zap throughput is the throughputyou should estimate to get (being conservative).

Estimate the overall supported throughput by running

zap and find the 99.5% tile Calculate the number of supported video streams by: # of Video Streams = Overall supported throughput /

(bandwidth per video stream)

Typically 3 -4 Mbps for SD & 8 12 Mbps for HD

Use 40-60 Mbps as rule of thumb for overall supportedVideo Throughput


9/139

Turn off Adapter Management on 7111

Adapter Managementis used to provideauto-provisioningcapability (to 7811)

Turning off this

feature will allow theuser to individuallyconfigure the 7111 tothe specific SSID


10/1310

Disable Mesh

Under most scenario, we should disable Mesh, as

it reduces the bandwidth and also the Mesh

topology changes can potentially cause video

disruptions Root AP performs periodic scanning


11/1311

Tune Directed Broadcast Threshold

Change Directed Broadcast Threshold to avalue larger than the number of maximumclient associated to the AP

Configuration (for increasing threshold to 10)

In a standalone AP set directed-thr wlanX 10 for each WLAN

In a ZoneFlex environment where the Zone Director ismanaging APs

enter the ZD CLI command: set_qos wlan

directed-threshold 10 for each WLAN.


12/1313

Use Quick Configuration Adapter Script

For larger # of Adapter configuration, you can use theQuick-config Adapter Script

The script provides the following automatedconfiguration steps:

Login to 7111 on 192.168.2.254Turn off Link ManagementTurn on dhcp clientProgram ssidProgram wpa keyProgram country codeChange device username and password


13/1314

5 GHz Operation Range and Regulatory Output Power

Frequency 5.15 5.25 GHz

U-NII 1 Indoor

5.25 5.35 GHz

UNII 1 Low

5.470 5.725 GHz

UNII 2

5.725 5.850 GHz

UNII 3 (or ISM)

ChannelNumbers

36 40 44 48 52 56 60 64 100 104 108 112116 120 124 128132 136 140

149 153 157 161

# of Channels 4 4 11 5

Dynamic FrequencySelection

No Yes Yes No

US 200 mW EIRP 1 W EIRP 1 W EIRP 4 W EIRP

EU 200 mW EIRP 200 mW EIRP 1 W EIRP

Best-Practice Guide for IPTV in Hotel

Documents