[c-nsp] ASR opinions..

[Vitkovsky, Adam]

Right the default route would work nicely with bgp free core and no IGP on the Intra-AS-RRs
But it won't work for Inter-AS-RRs
Because you don't wan the local AS IGP to be "polluted" with the remote ASNs PEs and Inter-AS-RRs loopbacks so you rather want to carry those in bgp-afi-ipv4 + labels
In this case you need the bgp-ipv4-afi to feed the FIB and LFIB on the Inter-AS-RRs
As you need the end to end LSPs in order to setup sessions between Inter-AS-RRs in different ASNs


adam 

-----Original Message-----
From: cisco-nsp-bounces at puck.nether.net [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Mark Tinka
Sent: Tuesday, August 30, 2011 6:33 AM
To: Mack McBride
Cc: cisco-nsp at puck.nether.net
Subject: Re: [c-nsp] ASR opinions..

On Tuesday, August 30, 2011 03:08:17 AM Mack McBride wrote:

> I would recommend a default to the core from the device
> to achieve ping/traceroute.

Not necessary - the majority of troubleshooting cases will 
be for customers in the network. We run a BGP-free core, but 
the route reflectors have direct access to the edge, so IP 
forwarding would suffice.

Mark.