[c-nsp] 15.2(2)S issues on 7600/SUP720

[Jeff Kell]

I've seen this on stacked 3750s when doing "anything" related to configurations, it
would hang up hard enough to timeout EIGRP hellos from neighbors (and vice versa)
causing general havoc everywhere.

The workaround was to include "parser config cache interface".

During the "hangs" if you could get another CLI session up the show proc cpu sort list
would show the stack configuration replication process eating up the resources.  That
wouldn't really apply to 6500/7600 but just in case, thought I'd throw that one in there
(it's a harmless configuration addition as far as I'm aware).

Jeff

On 4/25/2012 2:58 PM, Jason Lixfeld wrote:
> I'm testing 15.2(2)S on a couple of 7600/SUP720 combos and I've experienced some odd behaviour and I'm curious about whether  or not anyone else has seen this.   It's been really hard to reproduce, but it does happen once in a while, so I'm hoping similar experiences might give me some TAC ammo.
>
> Basically, at certain points in time, anything config related seems to hang for an indefinite period of of time before it will spit out the expected output:
>
> show run
> show run | [i | e | s | etc...]
> write t
>
> Sometimes it hangs for minutes, sometimes hours.  Other times it's instantaneous, as expected.  It doesn't seem to be CPU related and it doesn't seem to throw any logging messages.
>
> Anyone seen anything similar in their testing?
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