From: Williams, Glenn (WILLIAMSG@xxxxxxxxxxxxx)
Date: Fri Mar 08 2002 - 10:56:06 GMT-3
In Cisco's document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122cgcr/fqos
_c/fqcprt3/qcfwred.htm#xtocid6
<http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122cgcr/fqo
s_c/fqcprt3/qcfwred.htm#xtocid6>
they show WRED, fair-queue and queue-limit all used together. However I
think when I tried it I had to use default-class to get all to work. When I
applied this service-policy to an interface, show queueing seemed to
indicated WRED was there, but show interface S0 showed CBWFQ. In WFQ, you
are you are right on tail drop but I think that is a result of WFQ running,
not the queue-limit command??? But again, cisco shows this policy map with
WRED being used and the queue limit command. Yet I did not see WRED at
interface when applying this policy map. So how is it going to work? Also
once you apply this map, you cannot put random-detect on at the interface.
Also can't put that kind of policy map in a frame-relay class map.
Where are the experts on this? Need help in understanding this.
GW
-----Original Message-----
From: jeff Szeto [mailto:jytszeto@hotmail.com]
Sent: Thursday, March 07, 2002 9:42 PM
To: ccielab@groupstudy.com
Cc: Williams, Glenn
Subject: Re:Configuring Queues
Hi,
>From the CD, it shows the command "fair-queue" in class-based queueing is
only used in default class. The queue-limit 5 means tail drop will apply.
Could experts here explain why it is only used in the default class?
Thank you.
Jeff
Hi,
Trying to understand some simple concepts on queues. Does the below say
that class1 has 20 queues and each one can hold 5 packets?
policy-map VoIPWRED
class class1
fair-queue 20
queue-limit 5
TIA
GW
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