[AusNOG] 2811 IPv6 routing table limit

[Mark Grinceri]

I didn't make fully clear the topology last time, I was trying to keep the initial question simple.

However there's probably merit in providing details. I have two 2811 boarder routers each with a single IPv6 peer receiving a full table from the upstream and then iBGP between the border routers.

It's the iBGP exchanging of prefixes that is causing issues, both send each other full feeds initially however after doing some debugs I can see the routes from one iBGP peer withdrawning the prefixes until it's left with only 100 prefixes or so.

UTC: BGP(1): 2001:DF2:30F:6000::1 rcv UPDATE about 2A01:2C8::/32 -- withdrawn

Anyone want to shed light on withdrawn prefixes.

-Mark
________________________________
From: Matthew Moyle-Croft [mmc at 1mmc.com] on behalf of Matthew Moyle-Croft [mmc at mmc.com.au]
Sent: Sunday, 12 August 2012 12:41 PM
To: Mark Grinceri
Cc: AusNOG at lists.ausnog.net
Subject: Re: [AusNOG] 2811 IPv6 routing table limit

If you shut down the feed with a full table then do you see it fill up with routes from the other?

What does sh bgp ipv6 uni nei <ipv6 address> look like?

MMC

On 12/08/2012, at 8:12 PM, Mark Grinceri <mark at grinceri.com.au<mailto:mark at grinceri.com.au>> wrote:

Hi All,

Wondering if anyone knows if/what the limit for IPv6 routes on a Cisco 2811. I'm trying to received two full IPv6 tables and I'm only getting to around 10,000 routes. each feed is between 9500 - 9900 so a fully table and then about 100 from the other feed. I've checked the memory, that isn't the issue. Any thoughts?
This email has been scanned for spam & viruses by Barracuda Spam Firewalls _______________________________________________
AusNOG mailing list
AusNOG at lists.ausnog.net<mailto:AusNOG at lists.ausnog.net>
http://lists.ausnog.net/mailman/listinfo/ausnog


This email has been scanned for spam & viruses by Barracuda Spam Firewalls
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.ausnog.net/pipermail/ausnog/attachments/20120814/73130975/attachment.html>