QoS on Cat 6509 (Queuing)

[mjauner]

Hello Forum

I do QoS implementation on a Cat 6509 with this modules (Core Layer, Coloration and Marking is done on Access):

6509#sh modul
Mod Ports Card Type                              Model              Serial No.
--- ----- -------------------------------------- ------------------ -----------
  3    8  8 port 1000mb GBIC Enhanced QoS        WS-X6408A-GBIC     SAD041904DN
  5    2  Supervisor Engine 720 (Active)         WS-SUP720-3B       SAL1226UYHQ

Mod MAC addresses                       Hw    Fw           Sw           Status
--- ---------------------------------- ------ ------------ ------------ -------
  3  00b0.c2f4.a9fc to 00b0.c2f4.aa03   1.7   5.4(2)       8.7(0.22)BUB Ok
  5  001c.58d0.b09c to 001c.58d0.b09f   5.6   8.5(2)       12.2(33)SXH2 Ok

Mod  Sub-Module                  Model              Serial       Hw     Status
---- --------------------------- ------------------ ----------- ------- -------
  5  Policy Feature Card 3       WS-F6K-PFC3B       SAL1225UQ9N  2.3    Ok
  5  MSFC3 Daughterboard         WS-SUP720          SAL1225UPWN  3.1    Ok

I added queuing like described in Cisco documents.

!        
interface GigabitEthernet3/3
description QOSTEST
ip address 10.40.96.1 255.255.255.252
no ip redirects
wrr-queue cos-map 1 1 1
wrr-queue cos-map 1 2 0
wrr-queue cos-map 2 1 2 3 4
wrr-queue cos-map 2 2 6 7
mls qos trust dscp
!

If I implement the above configuartion in interface mode, the 6509 do the same configuration on all if within the module:

!

6509(config)#int gi 3/3
6509(config-if)#wrr-queue cos-map 1 1 1
Propagating cos-map configuration to:  Gi3/1 Gi3/2 Gi3/3 Gi3/4 Gi3/5 Gi3/6 Gi3/
6509(config-if)#wrr-queue cos-map 1 2 0
Propagating cos-map configuration to:  Gi3/1 Gi3/2 Gi3/3 Gi3/4 Gi3/5 Gi3/6 Gi3/

...

Can I change this behavier ? Did not find a hint.

Is it true, that it is not so great to control (show..) the queues or buffers etc. for the QoS in 6509 ?

Thanks

Martin

[Jon Marshall]

Martin

No you cant' change the behaviour.

Each module/linecard groups it's ports together. Each group of ports is connected to an ASIC. When you apply a QOS config to one of the ports in that group the PFC then applies the same config to all ports in that group.

So if a linecard has 4 groups and you apply a QOS config to a port that is in group 2 then all ports in group 2 (but not groups 1,3 & 4) will have the same QOS config applied.

You cannot modify the port to group mappings on the linecard as this is hardware implementation specific.

Jon

[mjauner]

Thank you !

So I have to accept this ;-)

Regards, Martin