3Com NETBuilder SI, SuperStack II manual Memory Dump, Stop the serial loopback test by entering

Performing a Memory Dump 145

If the number of received packets equals or approximately equals the number of transmitted packets, your serial line has passed the serial loopback test. If your serial line does not pass the test, verify that your bridge/router is cabled correctly and that the software is configured correctly. Also, check the number of packets transmitted and the number of errors by entering:

DLTest STATistics

6Stop the serial loopback test by entering:

DLTest Abort

7Restore the owner of the wide area port you are testing from loopback to your protocol using:

	SETDefault !<port> -PORT OWNer = PPP FrameRelay SMDS Auto
	Failure to perform this step causes the port to remain in loopback mode
	preventing connectivity through the port. Performing diagnostics on the
	port will reveal only that the port is down.
Performing a	If a SuperStack II bridge/router unexpectedly stops functioning, it
Memory Dump	performs a memory dump. A memory dump provides a view of the
	internal state of the system, which can help Technical Support determine
	the cause of the failure.

By default, the system performs a partial dump to available flash memory. If you want a full dump to a TFTP server on the local Ethernet network, you must have the following items available:

■IP addresses and subnet masks of the SuperStack II bridge/router, TFTP server, and possibly, the gateway leading to the network segment where the TFTP server is located

■A TFTP server on the local Ethernet network

■Authorization to write to the TFTP server

■10 MB of available disk space on the TFTP server

■The SuperStack II bridge/router configured to dump to the TFTP server

The procedure to obtain a memory dump involves setting up destination IP addresses and a file to hold the memory dump information. The bridge/router uses the IP addresses to transmit the memory dump in a file across the network to a TFTP server.