[cisco-voip] General QOS question

[Mounir Mohamed]

Dear jason,

The IP phone switch port must be configured as a trunk..Why? Because the COS
marking attached to the 3bits User priority of TCI 1byte of the ethernet
frame (802.1Q), or to the VLAN-ID 3 bits in the ISL header so if the port
not configured as trunk so the Filed that contain the COS will not be found
this is whay the IP Phone port must be configured as trunk port.


Best Regards,
Mounir Mohamed



On 6/6/06, Wydra, Jason <jwydra at burwood.com> wrote:
>
>   If you don't turn on trunking for an IP phone switch interface, then how
> is COS set and/or recognized on ingress?
>
>
>
> *Jason Wydra*
>
> *Consultant***
>
> *burwood* *group, inc.*
>
> *Phone: (312) 327-4677***
>
> *Cell: (312) 493-2834*
>
> jwydra at burwood.com
>
>
>
>
>
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-- 
Best Reagrds,
Mounir Mohamed
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