QoS implementation

Unanswered Question
Jul 10th, 2008
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Hi Guys,


I am trying to implement QOS between 2 sites


Brisbane router -------> point to point (with DCoS) ---------> Melbourne router


here is my configuration


Class-map match-all VideoTraffic

match access-group VideoTraffic

Class-map match-all VoiceTraffic

match access-group VoiceTraffic


Policy-map Tagging

Class VideoTraffic

set ip dscp ef

Class VoiceTraffic

set ip dscp af41


Policy-map QOS

Class VideoTraffic

bandwidth 2048

Class VoiceTraffic

priority 768

Class class-default

fair-queue


ip access-list extended VideoTraffic

Permit ip host <x.x.x.x (video conf. machine)> any

ip access-list extended VoiceTraffic

Permit Ip host <PABX IP> any


interface fast e 0/0 ( WAN Interface)

Bandwidth 4096

service-policy output QOS


interface fast e 0/1

service-policy input tagging.



when we applied the policy, i can see the traffic is classifed on show policy-map interface command. but video conf. machine showing packed drop.

I cannot see any packet drop on LAN and WAN interface.


is there anything wrong in config? do i need match protocol rtp video statement in class-map

VideoTraffic.


Please Help.

Thanks in advance.

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Marwan ALshawi Fri, 07/11/2008 - 07:52
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hi mate

try this match statement on the server conf


ip access-list video

permit udp host x.x.x.x(srv) any range 16383 32767


if ur video server already do marking it will be easier


then do this clas-map


class-map match-ANY video

match ip dscp af41

match access-group name video


then apply it in ur policy map


DONT FORGET TRY TO MAKE UR POLICY MAP IN OUTBOUND DIRECTION OK


good luck

Rate if useful



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