Frame-relay traffic shaping in hub-spoke environment

From: Sam Munzani (smunzani@comcast.net)
Date: Thu Oct 27 2005 - 15:24:08 GMT-3


What's best approach for frame-relay traffic shape in following
configuration?
                Hub (1024K line, 512K CIR)
                  |
     ------------------------------------------
     | | | | |
Site A B C D E

All remote sites are 256K line speed with 128K CIR.

Here is my dilema,
If I configure following parameters at all sites, the hub site will
start shaping when it reaches 128K. If I configure hub site with 512K of
CIR, it can saturate remote site since remotes are small CIR.

map-class frame-relay frame-shape
 frame-relay cir 128000
 frame-relay mincir 64000
 frame-relay adaptive-shaping becn
 frame-relay bc 8000
 frame-relay be 16000

Here is the approach I am thinking of:
1. Configure hub with sub interfaces.
2. Have sub interface parameters match remote site paramters.

Does it make sense? Any better option?

Thanks,
Sam



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