Re: wred requirement

From: Bob Sinclair (bob@bobsinclair.net)
Date: Tue Dec 20 2005 - 00:05:31 GMT-3


Hi John,

The IOS will not allow you to configure wred for a class other than
class-default unless you first use the bandwidth command. Since wred is a way
to manage the end of a queue, you must first create a queue. It is the
bandwidth command that creates the queue. Here is what happens:

R1(config)#policy-map test
R1(config-pmap)#class test
R1(config-pmap-c)#random-detect
bandwidth on the class is required to issue this command
R1(config-pmap-c)#bandwidth 200
R1(config-pmap-c)#random-detect
R1(config-pmap-c)#

HTH,

Bob Sinclair
CCIE #10427, CCSI 30427
www.netmasterclass.net

  ----- Original Message -----
  From: John Matus
  To: ccielab@groupstudy.com
  Sent: Monday, December 19, 2005 8:25 PM
  Subject: wred requirement

  ok wred requirement "there must be a bandwidth reservation within a class
  or wred must be in the class-default....................

  with this said, can you configure the following,( specfically referencing
  class http)
  do you have to have a bandwidth reserved in the "same" class as wred, or
  can it be in a different class, as in class rtp below

  class-map match-all rtp
        match access-g 101

  class-map match-all http
        match pro www

  access-list 101 permit tcp any any eq 1720
  access-list 101 permit udp any any range 16384 32767

  policy-map rtp
        class rtp
              priority percent 25
        class http
              random-detect
        class class-default
              fair-queue

  Regards,

  John D. Matus
  Technical Support / PAS
  Fujitsu Consulting
  626-568-7716
  John.Matus@tokiom.com
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