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Community Member

QoS Issue or perhaps a bug

I am trying to apply QoS on a multilink interface (two T1's)

This is what I originally applied and the router accepted it.

class-map match-all ipprec_4

match ip precedence 4

!

class-map match-all ipprec_3

match ip precedence 3

!

class-map match-all ipprec_2

match ip precedence 2

!

policy-map pobshaping

class ipprec_4

priority percent 50

class ipprec_3

priority percent 25

class class-default

fair-queue

After looking the policies over, I decided I wanted to adjust the bandwidth, so I issued a

no policy-map pobshaping

and recreated it as shown below

policy-map pobshaping

class ipprec_4

priority percent 50

class ipprec_3

priority percent 10

class class-default

fair-queue

When I went to apply this to the multilink interface the router generated this error

I/f Multilink1 class ipprec_3 requested bandwidth 10%, available only 0%

Suspending service policy pobshaping on Multilink1

It appears the router thinks the original priority percentages are still there and refuses to allow me to add the new ones.

Denny

2 REPLIES
Hall of Fame Super Bronze

Re: QoS Issue or perhaps a bug

When making changes on the policy-map, it's recommend to remove the service-policy on the interface - make the changes in the policy-map and then re-apply the service-policy on the interface.

HTH,

__

Edison.

Community Member

Re: QoS Issue or perhaps a bug

Hi Edison,

Thank you for your reply.

I was finally able to get it to apply, but I have no clue what I did.

I tweaked the percentages some more and when I went to apply the service-policy to the interface, the router said I needed to remove Fair Queuing from the interface first. I looked and was surprised to see it there.

I removed it them tried applying my service policy and it accepted it.

I will make sure I remove the service policy from the interface before adjusting my policy maps.

Thank you,

Denny

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