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Avaya AP100 Скачать руководство пользователя страница 10

Meru Networks WLAN Controllers with AP100, AP201, AP208

Configuration Guide

Field Verified

Page 10

Wireless IP Telephones

Wireless IP telephones use voice over IP (VoIP) technology on IEEE 802.11b-compatible
wireless local area networks (WLANs). Access points utilize radio frequencies to transmit
signals to and from the wireless IP telephones.

Access Point Capacity and Positioning

Each site is unique in its AP requirements. Please take the following points into account when
determining how many APs are needed and where they should be placed in the facility:

Handset range

There must be wireless LAN coverage wherever wireless IP telephones will be used. The
typical range for a wireless IP telephone is comparable to that of a laptop computer utilizing a
wireless LAN PC card. However, wireless IP telephones are likely to be used in areas where
data devices are not typically used, such as stairwells and outdoor areas. Wireless IP
telephones have a Site Survey mode that displays dBm levels to determine adequate WLAN
coverage. Refer to the

Wireless IP Telephone Installation and Configuration

document for

details about this feature.

Number of handsets per access point

Estimate the number of wireless IP telephones and their anticipated call volume per AP area
to ensure that the maximum number of calls per AP will not be exceeded. In this estimate,
consider the data rates at which the handsets will operate. Higher data rates can only be
sustained while well within the range of the AP. If the wireless IP telephones will be operating
near the limits of the RF coverage from the AP, they will automatically drop to 1 Mb/s
operation. Wireless IP telephones require approximately 15% of the available bandwidth per
call for 1 Mb/s operation, approximately 10% of the available bandwidth per call for 2 Mb/s
operation, approximately 7% of the available bandwidth for 5.5 Mb/s operation, and 5% of
available bandwidth for 11Mb/s operation.

Note: the maximum number of telephone calls per AP quoted in the summary table above is
based on 11 Mb/s operation, and will be reduced if some or all wireless IP telephones are
operating at 1, 2, or 5.5 Mb/s.

LAN bandwidth

Estimate anticipated peak call volume to ensure that the LAN has enough bandwidth available
to handle the network traffic generated by all of the wireless devices. Network traffic can be
monitored/analyzed using a network sniffer or a simple network management protocol (SNMP)
workstation.

Number of other wireless devices per AP

The wireless IP telephones share bandwidth with other wireless devices. To ensure adequate
RF bandwidth availability, consider the number of wireless data devices in use per AP.

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Содержание AP100

Страница 1: ... 3620 3626 3641 3645 Radio mode 802 11b 802 11b Maximum telephone calls per AP 8 8 Auto learn function Yes No Recommended network topology Switched Ethernet required Earlier and later software versions have not been tested for the Avaya Voice Priority Processor compliance Refer to Wireless IP Telephone WLAN Compatibility List for field verified AP software versions Telephone calls per AP must be c...

Страница 2: ...s of devices will require access and the mechanism of authentication encryption that they support This will drive the configuration of the system to support different user groups and security methods Recommendations For a typical healthcare deployment we recommend configuring one ESSID for the wireless IP telephones on a voice VLAN In order to support the SVP Call Admission Control feature this sh...

Страница 3: ...andsets operate on a very tight delivery schedule and will often channel scan elsewhere if those delivery expectations are not met To maintain the benefits of Virtual Cell just mentioned and to maximize calls we recommend using Virtual Cell zones A Virtual Cell zone is a zone area on a single channel containing one or more access points The diagrams below provide further illustration of Virtual Ce...

Страница 4: ...uaranteed coverage across all access points push to talk often operates on a base rate as low as 1Mbps Only a small set of handsets 3 4 can operate within a PTT channel on the Meru Wireless system A recommended method of improvement beyond multiple channel use for separation is managing downlink data delivery at a higher rate than uplink by removing the 1 and 2 Mbps basic rates no base tx rates 80...

Страница 5: ...tures of the wireless IP telephone system For example in order for the Avaya Voice Priority Processor discovery and push to talk features to function multicast must be enabled for the ESSID SVP QoS rules In order to provide QoS mechanism for the wireless IP telephone system a rule is required for the actual calls If you have previously deleted a QoS rule such as the one below then you should add i...

Страница 6: ... Sample WEP security profile WPA PSK Sample WPA PSK security profile Note that you may enter the WPA PSK key as either a string or the hexadecimal representation of the string In the example above this could also have been entered as PSK key getthek3y Note that on wireless IP telephones you may enter this in the string format or hex format Security profile svp_wep allowed l2 modes wep encryption m...

Страница 7: ...tual Cell mode all of the access points on the same channel will utilize a single BSSID This allows the system to perform client handoffs between access points without the client devices needing to perform 802 11 or 802 1X re association procedures to the new access point In a high density environment it is required that you use non Virtual Cell mode with the wireless IP telephones since the they ...

Страница 8: ...ulticast traffic is not passed If the deployment utilizes Avaya Call Servers on a software version older than 0 100 and does not have a Avaya Voice Priority Processor then all 802 11 base rates higher than 1 2 Mbps must be disabled for the wireless IP telephone ESSID If your deployment utilizes a Avaya Voice Priority Processor or is running version 0 100 or higher on the Avaya Call Server then 1 2...

Страница 9: ...directory opt meru ATS scripts For Release 3 1 x and older use the following settings in svpconfig scr For Release 3 2 and higher use the following settings in svpconfig scr Then configure the boot script for each access point References Meru Networks Configuration Reference available at http ftp merunetworks com Interface Dot11Radio ap id ap idx no preamble short qos if wmac0 set qos_scheduling_d...

Страница 10: ...anticipated call volume per AP area to ensure that the maximum number of calls per AP will not be exceeded In this estimate consider the data rates at which the handsets will operate Higher data rates can only be sustained while well within the range of the AP If the wireless IP telephones will be operating near the limits of the RF coverage from the AP they will automatically drop to 1 Mb s opera...

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