[171567] in North American Network Operators' Group

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Getting pretty close to default IPv4 route maximum for 6500/7600

daemon@ATHENA.MIT.EDU (Drew Weaver)
Tue May 6 13:20:26 2014

X-Original-To: nanog@nanog.org
From: Drew Weaver <drew.weaver@thenap.com>
To: "'nanog@nanog.org'" <nanog@nanog.org>
Date: Tue, 6 May 2014 15:39:13 +0000
Errors-To: nanog-bounces@nanog.org

Hi all,

I am wondering if maybe we should make some kind of concerted effort to rem=
ind folks about the IPv4 routing table inching closer and closer to the 512=
K route mark.

We are at about 94/95% right now of 512K.

For most of us, the 512K route mark is arbitrary but for a lot of folks who=
 may still be running 6500/7600 or other routers which are by default confi=
gured to crash and burn after 512K routes; it may be a valuable public serv=
ice.

Even if you don't have this scenario in your network today; chances are you=
 connect to someone who connects to someone who connects to someone (etc...=
) that does.

In case anyone wants to check on a 6500, you can run:  show platform hardwa=
re capacity pfc and then look under L3 Forwarding Resources.

Just something to think about before it becomes a story the community talks=
 about for the next decade.

-Drew


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