show policy-map interface help understanding the output table

Unanswered Question
Oct 28th, 2009

I've attached 2 examples of the output from a "show policy-map interface xxx n/n" I want to understand the table that is at the bottom of the output. I have some routers that do not show the table when I issue the command but for the ones that do, what am I looking at? everything to me is clear until I get to the table that shows 8 classes, 0-7 and rsvp information. What are the 8 classes? are these generic CS buckets? what? I have machines using more than one AF class that show only one row of class 0 in the table (also attached).

I cannot find a table explanation on the CCO, only definitions for everything preceding it.

shouldn't the numbers be sums from the classes? they're not.

Thanks in advance.

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Giuseppe Larosa Wed, 10/28/2009 - 14:49

Hello Nelson,

if you mean these lines:

>> class Transmitted Random drop Tail drop Minimum Maximum Mark

pkts/bytes pkts/bytes pkts/bytes thresh thresh prob

0 891548776/488485052793 0/0 0/0 20 40 1/10

1 0/0 0/0 0/0 22 40 1/10

2 0/0 0/0 0/0 24 40 1/10

these are related to WRED weighted random detect

WRED is a congestion management tecnique that tries to prevent to have full queue that causes generalized tail drops.

Hope to help

Giuseppe

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