From: Ed Lui (edwlui@gmail.com)
Date: Wed Jun 22 2005 - 13:45:12 GMT-3
Gladston,
I never tried it before. Wonder if you want to try this on the uplink
interface of the switch.
(config-if)#mls qos trust cos
It doesn't hurt to try...........
Ed Lui
On 6/22/05, gladston@br.ibm.com <gladston@br.ibm.com> wrote:
>
> Do you know if it is impossible to set CoS using MQC on 3550? (or if the
> result following is a bug)
>
> Flannagan book's shows set IP prec and set ip dscp. (I am wondering if
> this is an indication that set CoS is not supported, although IOS takes the
> command.
>
>
> The following config does not work.
> (the same config using set ip dscp and set ip prec work)
>
>
> class-map match-all Test11
> match access-group 187
> !
> policy-map Test11
> class Test11
> set cos 2
> !
> cat1(config-pmap-c)#int fa 0/8
> cat1(config-if)# service-policy input Test11
> cat1(config-if)#
>
>
>
> r5#sh int e 0/0 precedence
> Ethernet0/0
> Input
> Precedence 0: 33203 packets, 3784724 bytes
>
> r5#sh int e 0/0 precedence
> Ethernet0/0
> Input
> Precedence 0: 34059 packets, 3882308 bytes
>
>
> cat1#sh mls qos maps cos-dscp
> Cos-dscp map:
> cos: 0 1 2 3 4 5 6 7
> --------------------------------
> dscp: 0 8 16 24 32 40 48 56
>
>
> cat1#sh mls qos maps ip
> IpPrecedence-dscp map:
> ipprec: 0 1 2 3 4 5 6 7
> --------------------------------
> dscp: 0 8 16 24 32 40 48 56
>
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