[c-nsp] RESOLVED: Weird IPv6 problem passing Layer3 traffic

Chuck Church chuckchurch at gmail.com
Fri Jul 5 13:13:59 EDT 2013

Yeah, that actually seems worse than dropping all traffic.  I suppose your
CoPP rules could group 'unknown BGP' into its own class, rather than falling
into class default.  Seeing the drops in the unknown BGP section might be a
little more obvious than the class default drops.


-----Original Message-----
From: cisco-nsp [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Nick
Sent: Friday, July 05, 2013 12:56 PM
To: cisco-nsp at puck.nether.net
Subject: Re: [c-nsp] RESOLVED: Weird IPv6 problem passing Layer3 traffic

On 05/07/2013 17:33, Mack McBride wrote:
> Most right thinking ISPs should have rules that rate limit rather than 
> drop the connection.

in many cases, the packet throughput from bgp session pinup to loading full
dfz will tickle CoPP limits, causing the session to be torn down.


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