QOS Marking on 3750/4500

Amir Yanny · ‎09-13-2013

Need Some Help,

I configured DSCP marking on my 3750E, however i am not seeing any hits on the correct class. Here is my config.

Class Map match-any TEST

Match access-group name TEST

Match ip dscp ef (46)

Policy Map TEST

Class TEST

set dscp ef

police 128000 bps 8000 byte conform-action transmit exceed-action policed-dscp-transmit

Extended IP access list TEST

10 permit udp any range 49152 57500 any

20 permit udp any any range 49152 57500

interface GigabitEthernet1/0/24

service-policy input TEST

I verified with WireShark that the traffic coming from my application is using a UDP port in the range 49152 57500, however i am not seeing any matches on the right class, the traffic is matching only the default Class:

Clgr-ct18-sw7(config-cmap)#do sh mls qos int GigabitEthernet1/0/24 st

GigabitEthernet1/0/24 (All statistics are in packets)

dscp: incoming

-------------------------------

0 - 4 : 1493 0 0 0 0 <<<<<<<<<<<<<<

40 - 44 : 0 0 0 0 0 <<<<<<<<<<<<<<<<<< No Matches on 46

Any help/advise is highly appreciated!

Thanks,

A

Lei Tian · ‎09-13-2013

Hi Amir,

Do 'show mls QoS int sta' on the outgoing interface, see if the packet is marked to EF.

HTH,
Lei Tian

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Amir Yanny · ‎09-13-2013

Both the incoming and ongoing interfaces show zero counts on the EF. Am i missing something on config? I have the feelnig that i am not matching traffic.

Thoughts?

Lei Tian · ‎09-13-2013

Hi,

How's config look like on the outgoing interface? Is mls QoS enabled globally?

HTH,
Lei Tian

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Amir Yanny · ‎09-13-2013

Mls is golablly enabled.

Which interface are you referring by outgoing interface? The Trunk? If you are asking about the Trunk interface then all what i am doing there is trust DSCP

Here is setup i have:

PC--->Phone---Switch----Core Switch

Lei Tian · ‎09-13-2013

Yeah, probably is your trunk. So you check the show mls QoS sta on the trunk interface, and no packet in EF?

HTH,
Lei Tian

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Amir Yanny · ‎09-15-2013

I will test this and get to you back..

Amir Yanny · ‎09-19-2013

Sorry for the delay here is the output from the trunk, i don't see any EF traffic there too, what are your thoughts?

GigabitEthernet1/0/1 (All statistics are in packets)

dscp: incoming

-------------------------------

0 - 4 : 42592 0 0 0 1355

20 - 24 : 0 0 0 0 27

45 - 49 : 0 0 0 50 0

60 - 64 : 0 0 0 0

dscp: outgoing

-------------------------------

0 - 4 : 6219 0 0 0 0

5 - 9 : 0 0 0 73 0

45 - 49 : 0 0 0 604 0

60 - 64 : 0 0 0 0

cos: incoming

-------------------------------

0 - 4 : 44494 0 0 0 0

5 - 7 : 2 113 1004

cos: outgoing

-------------------------------

0 - 4 : 6223 73 0 0 0

5 - 7 : 0 604 9349

output queues enqueued:

queue: threshold1 threshold2 threshold3

-----------------------------------------------

queue 0: 0 0 0

queue 1: 0 165 9953

queue 2: 0 0 6050

queue 3: 73 0 8

output queues dropped:

queue: threshold1 threshold2 threshold3

-----------------------------------------------

queue 0: 0 0 0

queue 1: 0 0 0

queue 2: 0 0 0

queue 3: 0 0 0

Policer: Inprofile: 0 OutofProfile: 0