HP Network Direr Software Products manual Default location of 3Com Network Director is

678CHAPTER 16: UPGRADING DEVICE SOFTWARE

Once you are certain that the device is not responding you should physically inspect the device to ensure that all units or modules are operational. It can take several minutes for all of the units or modules in a device to return to an operational state following an update of the agent software. Therefore:

■If the device appears to be in an operational state, try to log in to the device using a connection to the console port and check that the device has appropriate network interface settings.

■If the device appears to be in a non-operational state, then it could be that the transfer of the agent file to the device during the Agent Update operation was interrupted. In this case, most 3Com devices will try to download the agent image from your management station indefinitely. However, 3Com Network Director will not accept TFTP requests once the Agent Update operation has completed.

To recover from this situation you can either use the serial update utility as detailed in the release notes for your device or you can run a standalone TFTP server on your management station that will service the device requests.

Repeated Timeouts If your attempts to upgrade a device repeatedly fail and the Agent Update Summary report indicates that the failure is due to a device timeout or ‘TFTP not reachable’ error, then you may need to increase the timeout and retry values for the 3Com Network Director internal TFTP server.

You can alter the timeout and retry values for the internal TFTP server by editing the following file:

<INSTALL LOCATION>\ext\com\coms\wsd\tnsext\agentupdate\ AUProperties.XML

The default location of 3Com Network Director is:

C:\Program Files\3Com\Network Director

3Com recommends that you alter the timeout and retry values in small increments, since large changes to these values can result in adverse performance of the Agent Update operation.