2950-T IOS downgrade failing

[bayliner]

I just received my Catalyst 2950-T switches with IOS c2950-i6q4l2-mz.121.11.EA1 installed. I am trying to downgrade to
c2950-i6q4l2-mz.121-9.EA1d, which is what all my switches are running. TFTP upgrade fails, will not put new file on switch. X-modem upgrade will copy the .bin file to the switch, but fails on boot. I have enough room to install the files on the switch. I am a newbie, but my expert co-worker has the same problem.

Thanks in advance.
Gayle
SRA International

 

[eurobadger]

Hi Gayle

Usual problem with this is the subtle differences between 'l' and '1' and 'I', full stops, commas, hyphens and underscores, but I cannot see any errors in the filenames as you have types them.

I have looked at Cisco's website & can find no notifications about problems with this software change. It might be worth erasing the flash on one of your new switches and loading the IOS into a cold box, but it is probably better to enlist Cisco's aftersales help by raising a case with their TAC.
Details on

http://www.cisco.com