[152726] in North American Network Operators' Group
Re: Juniper advertises ::/0 Cisco hears ::/3
daemon@ATHENA.MIT.EDU (Saku Ytti)
Sat May 12 04:54:27 2012
In-Reply-To: <CAOvEG7MVoE3FscV+O9OnDP4S7UjL9Cz7hDS7PaoNzP+ziuBjOA@mail.gmail.com>
Date: Sat, 12 May 2012 11:53:45 +0300
From: Saku Ytti <saku@ytti.fi>
To: Ben Bartsch <uwcableguy@gmail.com>
Cc: nanog@nanog.org
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
On 12 May 2012 04:29, Ben Bartsch <uwcableguy@gmail.com> wrote:
> Has anyone seen this behavior with BGP IPv6 between Juniper (owned by Lev=
el
> 3, advertising routes correctly, sending default ::/0) and Cisco (6509
> running 12.2.58.SXI6 advipservices, receiving all routes fine except
> default, hearing ::/3)? =C2=A0I worked with Level 3 and they confirmed th=
ey are
> sending ::/0 as default:
Just stab in the dark.
Verify that you're not disagreeing on SAFI.
If JNPR is sending labeled SAFI and you are expecting to receiving
unlabeled unicast SAFI. Then '3' from JNPR as 'implict null' would to
you mean prefix lenght.
Obviously it should fail harder, but I've seen IOS<->IOS reporting
SAFI to be one, but coding NLRI as if SAFI was something else.
--=20
=C2=A0 ++ytti
