[c-nsp] SUP 720 3BXL + 2 BGP Full View + MPLS VPN

Pavel Kuzin pk at nodex.ru
Fri Feb 29 03:23:09 EST 2008


this hint is for filtering labels for LDP. 

But, labels assigned by BGP, are not advertised by LDP. 

They just lie motionless in LFIB and are advertised only with "nei x.x.x.x send-labels" 

#show mpls ip binding summary 
Total number of prefixes: 213
Generic label bindings
                      assigned        learned
       prefixes      in labels     out labels
            213            212            420



--
Pavel D.Kuzin
Technical Director.
Nodex LTD.
Saint-Petersburg, Russia
pk at nodex.ru
http://nodex.ru
tel. +7 812 3800033 ext. 311
fax. +7 812 2304573

----- Original Message ----- 
From: "Mikael Abrahamsson" <swmike at swm.pp.se>
To: <cisco-nsp at puck.nether.net>
Sent: Friday, February 29, 2008 3:30 AM
Subject: Re: [c-nsp] SUP 720 3BXL + 2 BGP Full View + MPLS VPN


> On Thu, 28 Feb 2008, Pavel Kuzin wrote:
> 
>> How it can be turned off ?
> 
> You create an access list for your loopbacks (hopefully you have them in a 
> separate /24 or alike) and do "no mpls advertise-labels" and then you do 
> "mpls advertise labels for <access-list>" (or alike, I don't have easy 
> access to routers right this minute).
> 
> This only creates labels for your next-hops, not for every route.
> 
> If you fancy not mpls switching your internet traffic at all, create 
> separate loopback ranges for your vpnv4 sessions as opposed to IPv4 
> unicast ones, and only build labels for your vpnv4 next-hops.
> 
> -- 
> Mikael Abrahamsson    email: swmike at swm.pp.se
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