RE: bandwidth and priority commands calculate the total amount

From: Lord, Chris (chris.lord@lorien.co.uk)
Date: Mon Sep 13 2004 - 19:44:11 GMT-3


If you apply it to the main interface and don't use frame-relay traffic-shaping, then the available bandwidth is defined by max-reserved-bandwidth (default 75%) just like any other interface. You then have just one single L3 queue for all VCs.

-- Chris

-----Original Message-----
From: gladston@br.ibm.com [mailto:gladston@br.ibm.com]
Sent: 13 September 2004 23:15
To: ccielab@groupstudy.com
Subject: bandwidth and priority commands calculate the total amount

If the CBWFQ is applyed on the main interface (encaps frame-relay, without shaping) is the behavior any different (concerned to the available bandwidth)?

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quoted
When the bandwidth and priority commands calculate the total amount of bandwidth available on an entity, the following guidelines are invoked when the entity is a shaped Frame Relay permanent virtual circuit (PVC):

If a Minimum Acceptable Committed Information Rate (minCIR) is not configured, the CIR is divided by two.

If a minCIR is configured, the minCIR setting is used in the calculation.

The full bandwidth from the above rate can be assigned to bandwidth and priority classes. Thus, the max-reserved-bandwidth command is not supported on Frame Relay PVCs, although you should take care to ensure that the amount of bandwidth configured is large enough to also accommodate Layer 2 (L2) overhead
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