Re: discovery for targeted LDP

The targeted LDP sessions are the same, except the one with the xconnect
also advertises an FEC type for the VC. Targeted sessions will send directed
UDP hellos, run "debug mpls ldp transport events" to see the hellos.

On Mon, Mar 29, 2010 at 10:19 AM, Bit Gossip <bit.gossip_at_chello.nl> wrote:

> Experts,
> is there any exchange of UDP packets in case of a targeted LDP session?
> Theoretically the transport TCP session should be enough because the
> endpoint are configured and not discovered but still looks like hello
> are exchanged:
>
> xconnect 1.2.229.5 xxxxxx encapsulation mpls
>
> show mpls ldp neighbor 1.2.229.5 detail
> Peer LDP Ident: 1.2.229.5:0; Local LDP Ident 1.2.224.1:0
> TCP connection: 1.2.229.5.59999 - 1.2.224.1.646
> Password: not required, none, in use
> State: Oper; Msgs sent/rcvd: 248752/241197; Downstream; Last TIB rev
> sent 1076041
> Up time: 17w3d; UID: 171; Peer Id 4;
> LDP discovery sources:
> >>>>>> Targeted Hello 1.2.224.1 -> 1.2.229.5, active, passive; <<<
> holdtime: infinite, hello interval: 10000 ms
> Addresses bound to peer LDP Ident:
> <...>
> Peer holdtime: 180000 ms; KA interval: 60000 ms; Peer state: estab
> Clients: Dir Adj Client
>
> Also is a target LDP session configured with the 'xconnect' totally
> equal to one configured via
> 'mpls ldp neighbor 1.2.254.1 targeted ldp'?
>
> Thanks,
> Bit.
>
>
> Blogs and organic groups at http://www.ccie.net
>
> _______________________________________________________________________
> Subscription information may be found at:
> http://www.groupstudy.com/list/CCIELab.html
>
>
>
>
>
>
>
>

-- 
Bryan Bartik
CCIE #23707 (R&S, SP), CCNP
Sr. Support Engineer - IPexpert, Inc.
URL: http://www.IPexpert.com
Blogs and organic groups at http://www.ccie.net