[cisco-voip] CCM and QOS

[Ronald Heitmann]

Hi Danny,

the displayed "queuing type: fifo" has no relevance, since the 
Catalyst-Switch(es) use hardware-based forwarding/queuing with WRR- or 
SRR-strategy. You're config should work fine, if "mls qos" is enabled 
globally!
Choosing another software-queuing strategy (fair-queue, 
priority-queuing, custom-queuing, llq, etc.) will have no effect since 
there is no software-queuing in these boxes. It seems like cisco has 
forgotten to remove some cli-stuff while porting the ios-code from the 
router platform.

Regards,
//Ronald

Phillips, Danny schrieb:

> Below is the settings on my 3550 when I turned on “auto QOS”. When I 
> look at the interface using the show interface command, the queuing 
> says that it is fifo. My question is should I turn this off using the 
> “fair-queue” command?
>
> interface FastEthernet0/1
>
> switchport trunk encapsulation dot1q
>
> switchport trunk native vlan 31
>
> switchport trunk allowed vlan 31,231
>
> switchport mode trunk
>
> switchport voice vlan 231
>
> mls qos trust device cisco-phone
>
> mls qos trust cos
>
> auto qos voip cisco-phone
>
> wrr-queue bandwidth 10 20 70 1
>
> wrr-queue min-reserve 1 5
>
> wrr-queue min-reserve 2 6
>
> wrr-queue min-reserve 3 7
>
> wrr-queue min-reserve 4 8
>
> wrr-queue cos-map 1 0 1
>
> wrr-queue cos-map 2 2 4
>
> wrr-queue cos-map 3 3 6 7
>
> wrr-queue cos-map 4 5
>
> priority-queue out
>
> spanning-tree portfast
>
> spanning-tree bpduguard enable
>
> end
>
> Danny
>
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