RE: Class-Based Weighted Fair Queueing

From: Edwards, Andrew M (andrew.m.edwards@boeing.com)
Date: Wed Feb 09 2005 - 20:50:24 GMT-3


Because I'm dying to know...

Do you absolutely have to define the interface bandwidth on the
interface that you are applying the service policy too in order for the
bandwidth percent to take effect?

IOW, if it's a frame multipoint interface, and no per spoke PVC
bandwidth requirements are given, would it be necessary to define the BW
on the multipoint frame serial interface as 1544 even though that's the
default in order for the service policy to calculate the BW percentage
correctly?

andy

-----Original Message-----
From: Eric Taylor [mailto:etaylor10@tampabay.rr.com]
Sent: Wednesday, February 09, 2005 2:43 PM
To: Hans None; ccielab@groupstudy.com
Subject: RE: Class-Based Weighted Fair Queueing

That command will guarantee you that bandwidth for that particular
class. Under your default class you can define "fair queue" with the
number of queues allocated.

http://www.cisco.com/en/US/tech/tk652/tk698/technologies_configuration_e
xamp
le09186a0080094af9.shtml

policy-map VOICE-POLICY
  class voice-traffic
  priority 45
  class voice-signaling
  bandwidth 8

!--- Assigns a queue for voice-signaling traffic that ensures 8 Kbps.
!--- Note that this is optional and has nothing to do with good voice
!--- quality. Instead, it is a way to secure signaling.

  class class-default
  fair-queue

!--- The class-default class is used to classify traffic that does
!--- not fall into one of the defined classes.
!--- The fair-queue command associates the default class WFQ queueing.

R3(config-pmap)#class class-default
R3(config-pmap-c)#fai
R3(config-pmap-c)#fair-queue ?
  <16-4096> Number Dynamic Conversation Queues
  <cr>

R3(config-pmap-c)#fair-queue

HTH,
Eric

-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
Hans None
Sent: Wednesday, February 09, 2005 5:19 PM
To: ccielab@groupstudy.com
Subject: Class-Based Weighted Fair Queueing

Hi all,

What does the bandwidth command mean here? Is it going to define the
numbers of queues allocated?

Router(config-pmap-c)# bandwidth {bandwidth-kbps | percent percent}

Thanks,

Hans



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