[cisco-voip] Trusting CoS on router uplink from switch...

[Ryan West]

The router will trust the markings from the switch by default.  It will not the other way around.

Sent from my Windows Mobile® phone.

-----Original Message-----
From: Jonathan Charles <jonvoip at gmail.com>
Sent: Wednesday, July 23, 2008 12:22
To: Thorsten.Mayr at barclayscapital.com <Thorsten.Mayr at barclayscapital.com>
Cc: OSL CCIE Voice Lab Exam <ccie_voice at onlinestudylist.com>; cisco voip <cisco-voip at puck.nether.net>
Subject: Re: [cisco-voip] Trusting CoS on router uplink from switch...


Well, I do have subinterfaces and it is a dot1q trunk to the
gateway... just looking for a config to trust the CoS and DSCP... or
wondering if the router will clear the DSCP and CoS....



Jonathan

On Wed, Jul 23, 2008 at 9:38 AM,  <Thorsten.Mayr at barclayscapital.com> wrote:
> Charles,
> You won't have COS on the link to the gateway as you won't have a
> dot1.q/isl tag, unless you use subinterfaces on the router.
>
> I'd trusting on DSCP in that case.
>
> Did I get this one right, now? ;)
>
> T
>
>> -----Original Message-----
>> From: cisco-voip-bounces at puck.nether.net
>> [mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of
>> Jonathan Charles
>> Sent: Wednesday, July 23, 2008 2:58 PM
>> To: cisco voip; OSL CCIE Voice Lab Exam
>> Subject: [cisco-voip] Trusting CoS on router uplink from switch...
>>
>> OK, so we set the switch ports to trust CoS on the dot1q
>> trunk from phone to switch... are these then trusted from
>> that point on, or do we need to trust them elsewhere as well?
>>
>> Do we need to add any config to the voice gateways to trust
>> the CoS coming from the switches?
>>
>>
>>
>>
>> Jonathan
>> _______________________________________________
>> cisco-voip mailing list
>> cisco-voip at puck.nether.net
>> https://puck.nether.net/mailman/listinfo/cisco-voip
>>
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