Cisco Support Community
cancel
Showing results for 
Search instead for 
Did you mean: 
Announcements

Welcome to Cisco Support Community. We would love to have your feedback.

For an introduction to the new site, click here. If you'd prefer to explore, try our test area to get started. And see here for current known issues.

New Member

Configuring CAR parameters

I've looked at the archives and found no definite answer to what's the 'correct' formula to configure the normal-burst and excess-burst parameters for CAR. Several links on CCO suggested the following rule-of-thumb:

average-rate (r)= long term rate in bps one wants to achieve

normal-burst = 1.5r/8 (bytes)

excess-burst= 2* normal-burst (bytes)

Question: Can the same rule-of-thumb be applied to slower links (T-1 and below) as well as high speed links? for example, for a DS3 frame with multiple spokes, does the same formula apply to limit rate to a spoke to 3Mpbs?

TIA

Tom

1 REPLY
New Member

Re: Configuring CAR parameters

Use that forumla.

88
Views
0
Helpful
1
Replies