RE: Interpreting QoS capabilities

From: Joseph Brunner (joe@affirmedsystems.com)
Date: Fri Sep 14 2007 - 12:39:29 ART


T= tail drop thresholds, used by wred.

Each port has ingress and egress queues.

So for a 3750 which is 1p3q3t egress you have 1 priority queue, 3 queues,
each with 3 tail drop thresholds...

Check out...

http://books.google.com/books?id=WOPoD6cGXEsC&pg=PA351&lpg=PA351&dq=3750+1p3
q3t&source=web&ots=yVg3_ac27b&sig=GjCOwTFEFkO3InZZv7Xqozyszng

-Joe

-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
thomas.rader@freesurf.ch
Sent: Friday, September 14, 2007 10:44 AM
To: ccielab@groupstudy.com
Subject: Interpreting QoS capabilities

Hello,

I'm having problems interpreting a switches QoS capabilities:

show interfaces capabilities on my 3550 shows:

QOS scheduling: rx-(1q0t),tx-(4q0t),tx-(1p3q0t)

I assume p=priority and q= software queues but what is t ?

Why are two tx values ?

Can someone sched any light on this ?

Thanks, Thomas



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