Syslog Server Planning - Avaya Communication Server 1000 Installation And Commissioning Manual

Planning
You can configure handsets to not contact the TFTP server upon boot up, by configuring
255.255.255.255 as the IP address for the TFTP server (either directly in the handset or
through the DHCP option). You can configure the WLAN IP Telephony Manager 2245 to not
contact the TFTP server by changing the TFTP server address to none in the configuration.
The following information must be considered when planning for a TFTP Server:
• The process for the wireless handset to check its version of hardware against what is
available on the TFTP Server takes less than two seconds on a quiet network.
• If the TFTP Server is offline or unreachable, the wireless handset tries for about 10
seconds before giving up and using its existing version of hardware.
• The wireless handset hardware downloading process takes about 30 seconds.
• The TFTP Server must be capable of supporting multiple TFTP sessions.
• When a wireless handset makes a TFTP request, it uses file names without a full path
name. Therefore, software updates for the WLAN IP Telephony Manager 2245 and
handsets must be installed into the root directory of the TFTP Server.
When the software files are uploaded to the TFTP server. they must be unzipped. Allow time
for the TFTP server to refresh and be aware of the files before attempting to download software
to the wireless handsets and WLAN IP Telephony Manager 2245. Monitor the TFTP Server for
any errors.
The TFTP Server can be located anywhere on the network if the wireless handsets have the
subnet mask and default IP gateway configured correctly. However, the wireless handset
expects a response within two seconds to any TFTP request. Therefore, the TFTP Server must
not be located, for example, at the other end of a slow WAN link.
If too many wireless handsets are attempting to download new software simultaneously, the
downloads can slow down or return error messages. To reduce the number of retries and error
messages, manage the download process by staggering the times the wireless handsets
download the software.
Avaya has tested the following TFTP servers. They are listed in order of preference.
• TFTP server (ONMS application)
• 3COM TFTP
• PumpkinTFTP

Syslog Server planning

A Syslog Server listens for incoming syslog messages on UDP port 514 and then processes
the messages according to local administrative procedures. Usually the syslog messages are
logged for subsequent review by the system operator. A number of devices used within a
handset wireless configuration are capable of sending messages to a Syslog Server.
The Syslog Server can be any RFC 3164-compliant log server. You can configure the WLAN
IP Telephony Manager 2245, WLAN Application Gateway 2246, WLAN APs
48 Avaya WLAN IP Telephony Installation and Commissioning November 2010