[nsp] 6500s and BGP

Alex Rubenstein alex at nac.net
Tue Jul 15 22:23:20 EDT 2003


We are. It's tricky these days.

If running a Sup 2, there is a nasty bug in anything past 12.1(12c)E5 that
will blow up under certain conditions with full BGP. It's actually a
RIB->FIB update issue that consumes all CPU forever.

It may have been fixed now, but I don't know.

We have a 6509 s2/msfc2, running above mentioned code (in hybrid). It's
got about 20 sessions, which all together make a view or so.

msfc1.nyc>sho ip bgp sum
BGP router identifier 209.123.12.4, local AS number 8001
BGP table version is 40000372, main routing table version 40000372
123440 network entries and 206583 paths using 19534108 bytes of memory
39427 BGP path attribute entries using 2370060 bytes of memory
10 BGP rrinfo entries using 240 bytes of memory
22029 BGP AS-PATH entries using 573714 bytes of memory
1755 BGP community entries using 75862 bytes of memory
45064 BGP route-map cache entries using 721024 bytes of memory
0 BGP filter-list cache entries using 0 bytes of memory
Dampening enabled. 0 history paths, 0 dampened paths
3 received paths for inbound soft reconfiguration
BGP activity 782752/1526016010 prefixes, 33821391/33614808 paths, scan interval 60 secs

It's been very stable with this code.

msfc1.nyc uptime is 18 weeks, 2 days, 18 hours, 20 minutes
System returned to ROM by power-on

This box is ingressing a total of about 1,250 mbits/sec.





On Tue, 15 Jul 2003, matthew zeier wrote:

>
> Who's running 6509s in production with a full BGP feed?  We're having an
> internal discussion on whether this is a wise practice or not after hitting
> a static route/BGP bug a couple months ago.  Now we're only running OSPF.
>
> Any feedback would be helpful.
>
>
> --
> matthew zeier                        | "Nothing in life is to be feared.
> InteleNet Communications, Inc.       |  It is only to be understood."
> (949) 784-7904                       |       - Marie Curie
>
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-- Alex Rubenstein, AR97, K2AHR, alex at nac.net, latency, Al Reuben --
--    Net Access Corporation, 800-NET-ME-36, http://www.nac.net   --




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