OK, so when the transport label is stripped off, the VPN label tells the router which VRF table to inject the packet into. Once that is done, the router looks at the RT to determine if the route is valid to export to the customer. Is that correct?
Thanks, Vince Mashburn HP Americas Technology Services Account Services Manager FedEx On-site Office Phone: 901-263-6498 Mobile: 901-569-9734 From: Bryan Bartik [mailto:[email protected]] Sent: Thursday, February 11, 2010 4:06 PM To: Mashburn, Vince Cc: [email protected] Subject: Re: [OSL | CCIE_RS] MPLS VPN Label Vince, The Route target identifies the route, but does not identify the packet itself. Perhaps if there was an "RT" field in the IP header, you wouldn't need the VPN label at all :) On Thu, Feb 11, 2010 at 2:48 PM, Mashburn, Vince <[email protected]<mailto:[email protected]>> wrote: OK. I am a little confused with the VPN label in MPLS. I completely understand the Transport label, but I thought that all of the VPN information was carried within the Route-Target extended BGP community. Why do you also need a label to identify the VPN? Thanks, Vince Mashburn HP Americas Technology Services Account Services Manager FedEx On-site Office Phone: 901-263-6498 Mobile: 901-569-9734 _______________________________________________ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com<http://www.ipexpert.com> -- Bryan Bartik CCIE #23707 (R&S, SP), CCNP Sr. Support Engineer - IPexpert, Inc. URL: http://www.IPexpert.com
_______________________________________________ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com
