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

Tue May 6 15:55:35 UTC 2014

And since those puppies are going to need a reload after adjustment make sure your not exposed to the component decay issue for cards manufactured between 2005-2010 or you could have a interesting night.

We've hit that issue on three different 7600 chassis.

Darin 

-----Original Message-----

From: NANOG [mailto:nanog-bounces at nanog.org] On Behalf Of Drew Weaver

Sent: Tuesday, May 06, 2014 10:39 AM

To: 'nanog at nanog.org'

Subject: Getting pretty close to default IPv4 route maximum for 6500/7600
routers.

Hi all,

I am wondering if maybe we should make some kind of
concerted effort to remind folks about the IPv4 routing table inching closer
and closer to the 512K 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 configured to crash and burn after 512K routes; it may be a valuable
public service.

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 hardware 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