Just upgraded a Cat3560 to IOS ver c3560-ipbasek9-mz.122-44.SE.bin and a Cat2960 to c2960-lanbasek9-mz.122-44.SE1.bin respectively. Just after upgrading I discovered there is a later release for each of these models. Now, however, I cannot get the TFTP copy to work from my TFTP server (unchanged since last upgrade) to these switches.
When I do the "copy tftp flash" command and fill in all the parameters as usual the download seems to start but progress is VERY slow compared to normal. Switches advise download is complete, but only one tenth of the "!" have appeared than would appear normally. When I attempt to "verify flash:[iosname]" the switch tells me there is an error and that file does not exist. Running "show flash" shows the file DOES exist (or at least it's showing in the list) and is approximately the right size.
What I've tried:
- Tried a different TFTP server but got the same result
- Using a different switch I've been able to use TFTP from the original server to download the same image (ie. one of the above) with no problem, and faster.
- I have NOT tried using a different copying protocol
[CORRECTION] I have now tried FTP. Same result: FAILED.
[EDIT] EXTRA INFO:
I've just checked another switch (c2960) that I upgraded a few weeks ago and discovered that I cannot verify ANY of the files in flash: without getting the "file or directory does not exist" error message. It's IOS is 12.2(44)SE1 with crypto!! Maybe it's not that the file doesn't transfer, but that I just can't verify it (which makes using it in the "boot system" command path a little scary).
As usual, all help appreciated.