[c-nsp] 802.1p with Cisco 3750

Roger Wiklund copse at xy.org
Mon Mar 28 08:31:43 EST 2005


Hi,

Yes but I want to create different p-bits in my 3750. I have trunks to 
other switches.

I want to set CoS value 7 for vlan management
CoS value 5 for vlan VoIP
Cos valuse 4 for vlan IP-TV

All I can figure out is to ovveride the default CoS-value on port level. 
But that wont do any good when its a q-trunk-port?

Thanks

//Roger

On Mon, 28 Mar 2005, Darren Ward wrote:

> Hi Roger,
>
> You have to have a trunk running between the two switches to carry the CoS
> value, then simply configure either:
>
> mls qos trust cos
> - or -
> qos trust cos
>
> Depending upon the switch, this instructs the switch to not modify and to
> trust the peering device to set the QoS properly.
>
> Darren Ward
> CCIE 8245
>
> -----Original Message-----
> From: cisco-nsp-bounces at puck.nether.net
> [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Roger Wiklund
> Sent: Tuesday, 22 March 2005 10:26 PM
> To: cisco-nsp at puck.nether.net
> Subject: [c-nsp] 802.1p with Cisco 3750
>
> Hi,
>
> Can someone please give me a jump start how to configure 802.1p.
> I´ve read the QoS-section but I still cant get to it work.
>
> Basically I have want to do vlan-based CoS. And also i want to preserv the
> p-bit to the next switch, so I have to do something at egress i suppose?
>
> I would be great with some configuartion examples
>
> Thanks a lot
>
> //Roger
>
>


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