Hey M,
I spent a few moments messing with what you have below... Didnt have time last night!

When you hard code your Policy-Maps is when you have to change your max-res BW... The config below, you must increase the max-reserved BW.

class-map match-all osl1
 match access-group 1
class-map match-all osl2
 match access-group 2
class-map match-all voice
 match protocol rtp
!
policy-map example
 class osl1
  bandwidth percent 20
 class osl2
  bandwidth percent 30
 class voice
  bandwidth percent 40
!
interface FastEthernet0/0
 no ip address
 shutdown
 duplex auto
 speed auto

access-list 1 permit 100.100.0.0 0.0.0.255
access-list 2 permit 100.100.2.0 0.0.0.255

Now, here is a config that will allow you to use up to the 75% (Default) of the link.

!
class-map match-all osl1
 match access-group 1
class-map match-all osl2
 match access-group 2
class-map match-all voice
 match protocol rtp
!
policy-map example
 class osl1
  bandwidth remaining percent 20
 class osl2
  bandwidth remaining percent 30
 class voice
  priority percent 40
!
interface FastEthernet0/0
 no ip address
 shutdown
 duplex auto
 speed auto
 service-policy output example
!
access-list 1 permit 100.100.0.0 0.0.0.255
access-list 2 permit 100.100.2.0 0.0.0.255

Hope that steers you in the right direction!

-Adrian











On Aug 11, 2009, at 11:02 PM, M Jay wrote:

Please need some more clearification .... for sure I need to apply max-reserved-bandwidth 90 or more otherwise policy map will not be applied plz if any one can explain this.... the issue is with class- default what it will get as the question ask class-default will get remaining bandwidth . Kindly see the question below:



CC: [email protected]
From: [email protected]
To: [email protected]
Subject: Re: [OSL | CCIE_RS] QoS (CBWFQ)
Date: Tue, 11 Aug 2009 22:09:23 -0400

You really don't need to do anything... Anything that isnt spoken for in your service-policy that is applied to the interface is going to fall under the class-default as a catch all.

The % of BW is up to you... The default is 75% of the link and will depend what you want!

If you do max-reserved BW of 90%, the values will be adjusted as such:

20% of 90% of the link...

HTHs




On Aug 11, 2009, at 9:33 PM, M Jay wrote:

A question regarding QoS:

Confugure  QoS to corresponding interface. Subscriber’s ip address and
bandwidth are as follows :
· SUB_1 : 100.100.0/24 bandwidth  20%
· SUB_2 : 100.100. 2.0/24 bandwidth  30%
· Voice : Critical voice traffic bandwidth 40%
· Class-default : Class-default for remaining bandwidth


I just need to ask what bandwidth I allocate to Class-Default ? Should I just assign it as fair-queue or need to assign bandwidth of 10 % which is the remaining bandwidth

under policy map:

policy-map CBWFQ
class class-default
bandwidth percent 10

or

policy-map CBWFQ
class class-default
fair-queue

and what % bandwidth I need to allocate to the interface


Interface X
max-reserved-bandwidth 90

or

Interface X
max-reserved-bandwidth 100


Plz assist

Thanks



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