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Does the order matter in the class of the policy-map?

ciscoforum
Level 1
Level 1

We have third party video station connects to 3550 the video station doesn't support dot1q. So we'll use access-list to mark the video packetto 34 and also immplement a remark mechnism so that if the video traffic exceeds 256k we'll mark down the dscp a lower value 16.

Here is the config:

mls qos map policed-map 34 to 16

class-map video

match access-group 101

policy-map video

class video

police 256000 64000 exceed-action policed-dscp-transmit

set ip dscp 34

access-list 101 per udp subA any

My question is:

1. Is the order of set and police matter? Personally I think it may matter,more like entries in the acl.

2. Is here a link talking generally about this?

Thanks

1 Reply 1

irisrios
Level 6
Level 6

Here is one document which talks about the QoS Order of Opertion.

http://www.cisco.com/en/US/tech/tk543/tk757/technologies_tech_note09186a0080160fc1.shtml