Frame Relay Traffic Shaping

From: Jonathan R. Charles (jrcdehc@ameritech.net)
Date: Tue Aug 31 2004 - 01:06:36 GMT-3


What is the default behavior without FRTS configured on a router?

 

For example, let's say you have a DS-1, and a CIR of 256K, how will the
router transmit data (IOW, what are the defaults) if there is no FRTS
configured on the router? Will the router blast away at 1536kbps (with your
frame switch probably setting DE on everything above 256kbps) or will it
default to something else?

 

If you do not configure CIR, minCIR, BC, BE et al, what happens?

 

I read on the router ( cir Committed Information Rate (CIR),
Default = 56000 bps) that the default was a CIR of 56K, is this true? Is
this applied even if there is no map-class frame-relay configured and
applied to the interface?

 

Also, on Cisco's web site, it says that the CIR is actually the access-rate,
while minCIR is the CIR you are actually paying for.

 

Can anyone clarify?

 

 

 

 

Jonathan



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