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TFTP Server planning 31
At an installation, which uses both the WLAN Handsets 2210/2211/2212
and the WLAN Handsets 6120/6140, the software files for both handset
series must be installed and available on the TFTP server for the site.
Only one TFTP server is needed in the network, and it need not be
colocated with the handsets or the WLAN IP Telephony Manager 2245.
There is a client-dependent aspect to how the handsets function with the
TFTP server. How well a server works with the handsets can vary between
code versions on the handset.
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 firmware
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 firmware.
•
The wireless handset firmware 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.
Nortel Communication Server 1000
WLAN IP Telephony Installation and Commissioning
NN43001-504 03.04 Standard
23 September 2008
Copyright © 2004–2008 Nortel Networks
.