dscp tagging c2950

[daniel_heimburg]

Hello

Im trying to configure DSCP taggning on a C2950 switch. I have tried different approaches with no success.

1) Use of access-list, class-maps and policy-maps applied to both phone interface and uplink interface in a configuration such as;
mac access-list extended VOIP-MACS
 permit host 0004.0df0.dbca any
 permit host 0004.0df1.08f5 any
 permit host 0004.0df1.08bc any
 permit host 0004.0df1.08ba any

class-map match-all VOIPCLASSMAP
  match access-group name VOIP-MACS

policy-map VOIPPOLICY
  class VOIPCLASSMAP
    set ip dscp 46

interface FastEthernet0/8
service-policy input VOIPPOLICY

2) Interface configuration on both phone interface and uplink interface such as;
interface FastEthernet0/8
service-policy input mqc
mls qos cos 5

In 1) I have tried accesslists based on both MAC,IP and specific ports without success. I have not been able to debug very much
since l2 switching limits me in ways like accesslists not showing hits etc. But my uplink provider tells me no packets are getting tagged.

Please advice!

[Rajeev Sharma]

Hey Daniel,

Make sure that your switch is running LAN base image. Also I am adding link with some examples for your help:

http://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst2960/software/release/12-2_55_se/configuration/guide/scg_2960/swqos.html#wp1032145

HTH.

Regards,

RS.

[daniel_heimburg]

Thanks for your reply. I'm not very good with the different cisco images, the one I'm running is c2950-i6q4l2-mz.121-22.EA4a.bin. Is this not enough?

[Rajeev Sharma]

Hey Daniel,

You are running an old image with very limited QoS functionality, upgrade the IOS to latest and you should be able to use this functionality:

http://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst2950/software/release/12-1_22_ea11x/configuration/guide/scg/swqos.html#wp1045516

HTH.

Regards,

RS.

[Rajeev Sharma]

Another FAQ:

http://www.cisco.com/c/en/us/support/docs/lan-switching/lan-quality-of-service/46523-2950qosfaq.html

Regards,

RS.