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QOS issue

opnineopnine
Level 1
Level 1

Hi all,

I have the following configuration ,

ip access-list extended BLOCK
 deny   ip 46.38.56.0 0.0.7.255 any

!

 

class-map match-all BLOCK
 match access-group name BLOCK

!

policy-map BLOCK
 class BLOCK
  priority 8
  set dscp ef
policy-map QOS

!

interface f0/0

 

service-policy output BLOCK

 

The idea for this is to give the lowest bandwith to this ip range. but I dont see this working, 

Any ideas?

 

Thanks

 

4 Replies 4

Access-list doesn't match any packets. If you would like match all packets except network 46.38.56.0 0.0.7.255 You should use

permit ip any any

after deny ip 46.38.56....

Hi all,

 

All the qos config I have is the one I posted., I already made the change for the ACL. What I'm looking for is to give the minimum bandwidth to that IP address.

 

Thanks. 

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Posting

Could you further define what you mean by providing minimum bandwidth?

If you mean last to get bandwidth, use a bandwidth statement rather than the priority statement.  Setting to 8, I recall, will provide the lowest possible dequeuing priority.

Then match the traffic you want to provide this low priority to.

You might also consider a generic policy such as:

policy-map generic

class LLQ

priority percent 33

class HiPriority

bandwidth remaining percent 81

fair-queue

class LoPriority

bandwidth remaining percent 1

fair-queue

class class-default

bandwidth remaining percent 9

fair-queue

The above (as a model) often addresses about 99% of any QoS needs (for congestion management), just direct traffic to the "correct" class.

 

Hello

Are you showing the complete acl listing here?
What is the QOS policy map performing?

Applying 8Kps of LLQ to a class map that is  matching on a ACL with a deny ACE range doesn't make sense to me, a permit value would be more viable solution.

Can you show the full qos configuration if applicable?



res

Paul






 


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Kind Regards
Paul
Review Cisco Networking for a $25 gift card