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New Member

Cat2924XL post-IOS upgrade unexpected results

We recently upgraded one of our Cat2924XL units from IOS 12.0(5)XW to 12.0(5.1)XP by following the detailed steps in the PDF file "Release Notes for Cat2900 Series XL..." upgrade steps (78660804). Upon completion, we rebooted the Cat2924XL, performed a "sh ver" and found that it was still running the older version IOS.

We did a DIR on flash: and saw that all of the files from the tar file on our tftp server had been dumped into the root of flash: and the diag image had disappeared.

We re-ran the process with the same results. So we then deleted the whole mess from flash: and copied the IOS and diag images from our other 2924XL ( which is working fine ), reloaded and now the switch appears to be working, with one exception: The switch is still exhibiting the same problem that led us to upgrade the IOS.

This switch routinely barks in the log file "%RTD-1-ADDR_FLAP etc. etc." Since we had originally changed the management VLAN from Vlan 1 to another we had defined, this appeared to be the problem, which the IOS upgrade should have addressed.

Using the diagnostic process from the "Catalyst 2900 Desktop Switch Software-System Error Messages" document, we turned on "debug ethernet-controller addr" and watched the log entries grow exponentially.

What we fail to understand at this point are the log references to a mysterious Port 25. A number of addresses are bouncing between Port 25 and Port 24. Strange for a device that only has 24 physical ports, so is this perhaps a reference to a VLAN?

This and other switches are not clustered.

This switch is connected fa0/23 and fa0/24 (100FX) to another, identical Cat2924XL. The ports are in a FEC Group (Group 2) and 802.1q trunking, which appears to be working just fine.


New Member

Re: Cat2924XL post-IOS upgrade unexpected results

Since it seems that nobody wants to answer this gnarly little question, we went ahead and fixed it ourselves using information harvested from various and sundry listserv digests, newgroups and other repositories of knowledge with respect to infrastructure devices.

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