[c-nsp] Re: 7206-VXR/NPE-300 memory problems

[Charles Sporkman]

On 2/3/06, Ted Mittelstaedt <tedm at toybox.placo.com> wrote:
>
> we take 2 full feeds too, here's our stats for comparison:
>
>
> >sh hard
> Cisco Internetwork Operating System Software
> IOS (tm) 7200 Software (), Version 12.2(32), RELEASE SOFTWARE (fc1)
> Copyright (c) 1986-2005 by cisco Systems, Inc.
>
> uptime is 2 weeks, 3 days, 15 minutes
>
> cisco 7206VXR (NPE300) processor (revision B) with 229376K/65536K bytes
> of memory.
>
> R7000 CPU at 262Mhz, Implementation 39, Rev 1.0, 256KB L2, 2048KB L3
> Cache
> 6 slot VXR midplane, Version 2.0
>
> >sh mem
>                 Head    Total(b)     Used(b)     Free(b)   Lowest(b)
> Largest(b)
> Processor   6231A200   198073856   144690712    53383144    51027612
> 51077400
>       I/O   20000000    33554432      226616    33327816    33286864
> 33327772
>     I/O-2    E000000    33554440     2643032    30911408    30911408
> 30911356

Interesting.  I must have a big memory leak somewhere.

I am now just taking customer routes from my less preferred, default
from both and I've got some breathing room now.

Thanks again,

Charles

>
> Good luck with it.
>
> Ted
>
> >-----Original Message-----
> >From: cisco-nsp-bounces at puck.nether.net
> >[mailto:cisco-nsp-bounces at puck.nether.net]On Behalf Of Charles Sporkman
> >Sent: Thursday, February 02, 2006 12:59 PM
> >To: cisco-nsp at puck.nether.net
> >Subject: [c-nsp] Re: 7206-VXR/NPE-300 memory problems
> >
> >
> >On 2/2/06, Charles Sporkman <spork.sporkman at gmail.com> wrote:
> >> We take two full BGP feeds (about 170,000
> >> prefixes each) and either memory is just getting tight due to the
> >> ever-expanding route table, or I've got a nasty memory leak.
> >> [snip]
> >> Tonight, the issue crept right back up within hours.  One transit
> >> provider bounced their bgp session and right away I was seeing rancid
> >> report config lines changed again and then saw the malloc failures in
> >> the log.
> >
> >Thanks for all the replies...  I still have a few questions.
> >
> >Does my bgp memory usage (102 MB) seem proper for taking two full
> >views or is there something to indicate that bgp is leaking or not
> >properly deallocating memory?  The large jump after a provider flapped
> >seems fishy to me.
> >
> >Also, when making changes to bgp (ie: if I went with just taking
> >default routes, or did more prefix filtering), is a reload required to
> >clear the memory bgp was using?  As I mentioned, dropping one bgp peer
> >from 170K routes to 16K routes freed up no memory at all.
> >
> >Lastly, anyone have any feelings on 12.2(17a)?  I see the latest is
> >12.2(20a).  I'm not feeling the urge to jump to 12.3 or 12.4 at this
> >point.
> >
> >Thanks,
> >
> >Charles
> >
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