Hi all,
I am contemplating upgrading a 7600 with redundant SUP720-3B's from
12.2(33)SRD1 to SRD4 using ISSU (which is something I haven't played with
before).
I've read the doco and it seems reasonably straightforward.
The question I have is can I run the upgrade remotely on a VTY session without
any problems ?
The router does NOT have dedicated out of band management at this point, so my
plan was that I would set the commit timer to something reasonable like 5-10
minutes (ISSU should only take seconds according to documentation) so that if
my connection drops out and doesn't come back when I switch to the new IOS
version it will fall back to the old version when I can't/don't commit the new
one.
My connection will be via a "plain" 65xx line card, so I doubt that it will
have any issues with the newer IOS.
If it all goes totally pear shaped then I can get someone to the site in about
30-40 minutes to sort out the mess.
Just out of interest I am upgrading due to bug CSCsx03291.
Any general experience/advice on ISSU also appreciated :)
Thanks,
Tony.
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