Pre-Download Checklist; Ip Phones Fundamentals; Nn43001-368 02.01 Standard - Nortel 1110 Fundamentals

548 Appendix I TFTP Server
The following information must be considered when planning for a TFTP
Server:
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When the firmware is uploaded to the TFTP Server, the files must be
unzipped. Allow time for the TFTP Server to refresh. Monitor the TFTP
Server for any errors. The TFTP Server can be located anywhere on the
network if the IP Phones have the subnet mask and default IP gateway
configured correctly. However, the IP Phone expects a response within two
seconds to any TFTP Server request. Therefore, the TFTP Server should
not be located, for example, at the other end of a slow WAN link.
If too many IP Phones attempt to download new software simultaneously, it
can cause the downloads to slow down or return error messages. To reduce
the number of retries and error messages, manage the download process
by staggering the times the IP Phones download the firmware.
Nortel has tested the following TFTP Servers. They are listed in order of
preference:
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Pre-download checklist

Ensure the following requirements are met before downloading firmware:
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Copyright © 2003–2007, Nortel Networks
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The process for the IP Phone to check the version of firmware against
the firmware on the TFTP Server takes a few seconds for a quiet
network.
The IP Phone attempts to connect to the TFTP Server. If the TFTP
Server is offline, unreachable, or no connection is made, the IP Phone
uses its existing version.
The firmware downloading process takes about 30 seconds.
The TFTP Server must be capable of supporting multiple TFTP sessions.
When the IP Phone makes a TFTP request, it uses filenames without a
full path name. Therefore, firmware updates for the IP Phones must be
installed on the root directory of the TFTP Server.
Nortel TFTP Server (ONMS application)
3COM TFTP Server
Pumpkin TFTP Server
A LAN must be properly configured and operational.
The Nortel Telephony system must be connected to the network and
completely operational.
A TFTP Server must be available on the network in order to load the
appropriate firmware in the IP Phones.
Nortel Communication Server 1000

IP Phones Fundamentals

NN43001-368 02.01 Standard

Release 5.0 7 December 2007