Qos one machine

Unanswered Question
Jun 25th, 2009
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I am trying to setup a qos policy and give one specific machine priority. All traffic from this one machine will be given priority. On the remote side the config looks like the following.

access-list 10 permit

class-map match-any CitrixTraining

match access-group 10

class CitrixTraining

set dscp af31

policy-map mpls_wan

class CitrixTraining

priority 128

then apply the policy map to the serial interface. All this traffic will go to citrix. On the head end side do I need a policy to set the taffic back to this machine? If so since this is citrix how can I set the priority back to this machine and not all citrix traffic?

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cisco_lad2004 Thu, 06/25/2009 - 09:48
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ACL matching source or destination host can be used for matching inbound and outbound traffic.

You can configure a class map matching source of the machine, and at the other end use another ACL to match destination to tsi particular host.



Joseph W. Doherty Thu, 06/25/2009 - 16:27
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To clarify Sam's suggestion . . .

Instead of using a standard ACL, you can use an extended ACL. (I'm using a named ACL, but numbered would work too.)

(NB: syntax might be incorrect)

ip access-list extended CitrixTrainingHost

permit ip host any

permit ip any host

!added match for Citrix protocol

class-map match-all CitrixTraining

match access-group CitrixTrainingHost

match protocol Citrix

policy-map mpls_wan

class CitrixTraining

set dscp af31

priority 128


Since I see "mpls_wan", you might also have to apply QoS for asymetrical bandwidths (to the MPLS cloud) and/or utilize MPLS QoS support.


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