The MPLS WG Archive

["Manish R. Shah." <manishs@future.futsoft.com>]

Hi !!!

Once the LSP's are created, the ingress router looks for the matching FEC, and attaches 
a label corresponding to that FEC on to the data packet. Further forwarding is done using
the label switching. 

In an MPLS domain the LDP has already taken care of mapping 
FEC's with the incoming and outgoing Labels and efficient distribution of Labels.

Look at the following draft for furthur details.  draft-ietf-mpls-ldp-06.txt 

Cheers !!!

Manish R. Shah.
Senior Software Engineer,
Future Software Pvt Ltd.
480-481, Anna Salai, Nandanam
Chennai 600035.
Phone: +91-(44)-433-0550 Xten 294.


-----Original Message-----
From:	Neetu Gupta [SMTP:neetug@daewoo.dti.daewoo.co.kr]
Sent:	Tuesday, April 25, 2000 10:28 AM
To:	mpls@uu.net
Subject:	Finding the Egress Point in the MPSL Domain for the specific Destination

Hello,
    Suppose the LSPs are created among the Edge Routers in the MPLS
Domain with specific class of services. Now the data packet comes at the
Ingress LER, the IP Header contains the Destination Address and TOS
byte.

Since there are labels to Egress Router, to which Egress LER the data
packet will be forwarded that will route to the Destination?

I've heard of the draft that specifies how to treat LSP tunnel end node
like LSP egress edge as next node for route calculations.
Please give some reference.
Neetu