Re: Juniper advertises ::/0 Cisco hears ::/3

[Saku Ytti <saku () ytti fi>]

On 12 May 2012 04:29, Ben Bartsch <uwcableguy () gmail com> wrote:
> Has anyone seen this behavior with BGP IPv6 between Juniper (owned by Level
> 3, advertising routes correctly, sending default ::/0) and Cisco (6509
> running 12.2.58.SXI6 advipservices, receiving all routes fine except
> default, hearing ::/3)?  I worked with Level 3 and they confirmed they 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.

-- 
  ++ytti