MPLS TE RSVP bandwidth delim

I got this question bugging me for a while.

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

Scenario:
RSVP interface bandwidth: R1,R2,R3=50MB
A) create a tunnel between R1 to R3 and allocate 2 MB
B) create a tunnel bandwidth R3 to R1 and allocate 2 MB

Requirement: Customer want 2 MB bandwidth regardless of direction!

Q1: If customer have is paying for 2 MB, in real world what do we configure
tunnels?
optionA) 1 MB in each direction i.e. tunnel R1 to R3 = 1MB, tunnel R3 to R1
= 1 MB
optionB) 2 MB in each direction i.e. tunnel R1 to R3 = 2 MB, tunnel R3 to
R1 = 2 MB

with option#b - i think a customer will get double bandwidth ! but that
will ensure 2 MB in any direction.

My understanding for the above option 1# is that - Typical SP will only
provison 1 MB in each direction.
However, customer would like to see 2 MB in full either one or both
direction.

How do we deal with this kind of situation where customer want to see 2 MB
in total regardless of direction?

Q2: Are tunnels uni or bi directional?

Thanks in advance.

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Received on Sun Nov 25 2012 - 12:55:58 ART