The MPLS WG Archive

["Mike Badil" <hasko10@hotmail.com>]

Hi

I am currently working in MPLS signaling, I have some question from material 
I read.

Q1- Extended RSVP(LDP/CR) does aggregation if we compare to the Traditional 
RSVP. In other word The traffic goes to the same destination and have same 
FEC can be carried in the same LSP. That is clear.
suppose we have the following scnerio:

Host A and B both send message to host D(connected to R3) and the traffic 
from both sources can be in the same FEC so that both traffic can be 
assigned to the LSP1. R1 is the ingress and R3 is the engress.
This point is clear.

A------->|
         |R1-----------R2-----------R3---D
B------->|  <----------|LSP1-------->|
                       |             |
                       |             |
                E---->R4            R5---F

But If host A sends packet to D which is connected to R3 and B sends to F 
which is connected to R5. Again assume that A and B has the same FEC so that 
they can be assigned to same LSP. But the destination routers are not the 
same.

The question here is what is the LSP for host B? Can it travel trough 
LSP1(R1-R2-R3) then take another LSP from R3 to R5?

Similar case suppose E and B send  data to the same destination which  is F 
connected R5. Again assume that they have same FEC and they can be assigned 
to the same LSP. What is their LSP? Are going to be assigned to  a LSP from 
R4 to R2 and a LSP from R1 to R2 then the same LSP which is R2-R3-R4?

If above statement are correct, how does it happened, Does they use label 
stack to do this?

Second Question

After all the required reservation is set up, If a host violate its  
reservation limits in other word send data in higher rate than it reserved, 
what would happen? Does it have any policy control mechanism like diffserv 
etc.?

Thanks


______________________________________________________
Get Your Private, Free Email at http://www.hotmail.com