Subject: MPLS Clarifications

From: R S Srinath <[email-masked]>
Date: Tue, 12 Oct 1999 14:06:24 +0530

Hi Folks,

In the figure below, LSR's R1, R2 and R3 are in the same bridging
domain (i.e. they have atleast one interface in a common subnet ).
The common subnet is say S. Note that the physical connectivity
is thru ATM.

       ----
------                                        -----
      |            |                               |
|                                      |              |
      |            |                               |
|                                      |              |
      |   R1    | ----------|    R2         |------------  |     R3    |
      |            |                               |
|                                      |              |
       ----
------                                        -----

In the Hello exchange should the R1 and R3 see each other as peers.
If yes then what is the significance of the ATM Label Range
( indicated in the Initialization message) between R1 and R3,
since they are connected thru R2 physically ?

Regards

R S Srinath