RE: MQC for bandwidth reservation

From: HP-France,ex2 ("SANCHEZ-MONGE,ANTONIO)
Date: Wed Feb 25 2004 - 07:29:00 GMT-3


Hi Alsontra,

Both bandwidth commands have very different meanings.

Under the interface, it means the total reference bandwidth. Used for QoS
but also for routing protocols, etc... Normally you need to change it in
serial interfaces where the real bandwidth is different from T1, etc...

Under the class in a policy map, it is the bandwidth you want to reserve for
a particular class. The total reserved bandwidth cannot exceed by default
75% of the reference bandwidth.

Cheers,
Ato.

-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
alsontra@hotmail.com
Sent: miircoles, 25 de febrero de 2004 11:01
To: ccielab@groupstudy.com
Subject: MQC for bandwidth reservation

When is the interface level bandwidth command used or needed with MQC?

For example:

class-map match-all ICMP
  match access-group 101

policy-map ICMP_BW
  class ICMP
    bandwidth 128

interface fa1/0/0
   bandwidth 1500 <-----------------------------When does this need to be
specified?
     service-policy output ICMP_BW

If I don't specify this, what value dose the interface policy use? The
interface bandwidth rate? And if so why would I want to change it?

Alsontra



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