[f-nsp] VLL, VPLS and the point of configuring LSP's

[Dan Spataro]

Remco,

You can use LSPs configured with strict primary and secondary paths for the VPLS.   This will allow you to control which way the VPLS traffic will flow over your network.  You can also configure your LSP to use fast reroute for fast failover.  Last time I checked you could not tell a VLL to use a defined LSP like you can do with a VPLS.  I think a work around is to map a COS to the LSP and VLL.


Thanks,
Dan

-----Original Message-----
From: foundry-nsp-bounces at puck.nether.net [mailto:foundry-nsp-bounces at puck.nether.net] On Behalf Of Remco Bressers
Sent: Thursday, May 10, 2012 5:03 PM
To: foundry-nsp at puck.nether.net
Subject: [f-nsp] VLL, VPLS and the point of configuring LSP's

Dear list,

At first, excuse my ignorance. I'm trying to get used to configuring MPLS on Brocade MLX/XMR series and all is working fine, but after reading through the manual i still have a question that is unanswered at the moment.
We are operating a network of 4 XMR routers in a ring topology with routed interfaces pointing to each-other. On these interfaces, i enabled ldp as follows :

router mpls
 policy
  traffic-eng ospf
  mpls-interface ve9
  ldp-enable
  mpls-interface ve92
  ldp-enable
!

Local, and remote VLL's are working perfectly. The manual is referring to configuring LSP's which you then use in the VPLS or VLL configuration to determine your path (vpls). I never used that before and it still is working. What is the actual advantage of configuring LSP's and using them in your VLL or VPLS configuration? I don't seem to understand it fully. If someone can explain it in a more basic way, i'd be very grateful.

Kind regards,

Remco Bressers


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