On 6/26/2014 5:31 PM, David Farrell wrote:
On 26/06/2014 22:38, Nick Hilliard wrote:
I've seen several boxes running 15.0(2)SE and rebuilds suddenly die with
memory problems. The box would be fine for many months, then one day
the
monitoring system would show that it had suddenly started losing ~1%
memory
per hour and then would crash a couple of days later with OOM. I caught
one in the act last week, and "show memory" suggested that the dot1x
process was chewing up fragments all over the place. dot1x was
disabled on
that switch.
I've seen similar with 15.0(2)SE on the 2960G but I suspected the SSH
process according to "sh mem", possibly exacerbated by monitoring the
SSH port for availability. When ours died only a power cycle brought
the thing back, as opposed to IOS crashing/rebooting... Unpleasant.
I'm planning a downgrade to 12.2(55)SE9 on two units this weekend.
I've had the code running on a test switch to my satisfaction, I'll
attempt to remember to note any oddities here.
If you're running into out of memory issues on 15.0(2)SE or 15.2(1)SE
trains, and aren't doing AutoSmartPorts, try doing a no macro auto
monitor in your config. This was the cause of memory leaks that we
experienced on several hundred 3560G/3560X's across multiple sites.
Sites with large numbers of port up/down events seemed to hit it even
quicker. With this disabled we've been pretty happy with 15.0(2)SE4's
stability for the last 6-9 months or more. We were testing 15.2(1)SE but
ran into major issues with ip device tracking causing all kinds of
duplicate IP issues/alert messages. Anybody else encounter this and have
a fix for it in a predominantly MS environment (Win2K8/2K12 servers for
DHCP, Win7/8 clients). The ip device tracking delay 10 didn't make any
difference when we tried it. We'd really like to find a fix for it so
we can get RSVP snooping enabled for mediatrace (dependent on ip device
tracking)
Jeremy "TheBrez" Bresley
[email protected]
_______________________________________________
cisco-nsp mailing list [email protected]
https://puck.nether.net/mailman/listinfo/cisco-nsp
archive at http://puck.nether.net/pipermail/cisco-nsp/
