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New Member

QOS Marking on 3750/4500

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

7 REPLIES
Cisco Employee

Re: QOS Marking on 3750/4500

Hi Amir,

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

HTH,
Lei Tian

Sent from Cisco Technical Support iPhone App

New Member

Re: QOS Marking on 3750/4500

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?

Cisco Employee

Re: QOS Marking on 3750/4500

Hi,

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

HTH,
Lei Tian

Sent from Cisco Technical Support iPhone App

New Member

Re: QOS Marking on 3750/4500

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

Cisco Employee

Re: QOS Marking on 3750/4500

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

Sent from Cisco Technical Support iPhone App

New Member

QOS Marking on 3750/4500

I will test this and get to you back..

New Member

QOS Marking on 3750/4500

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

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