[cisco-voip] Default Qos behaviour
Aman Chugh
aman.chugh at gmail.com
Thu Sep 28 12:20:29 EDT 2006
Thanks for the reply ryan,I have a 3560 switch and qos is not enabled on any
ports or globaly.will the qos both layer 2 (COS) and layer 3 (DSCP ) be
removed/disregarded by the switch which is set by Ipphones.
Aman
On 9/28/06, Ryan Ratliff <rratliff at cisco.com> wrote:
>
> Depends on the switch hardware and whether qos is enabled or not
> globally on the switch.
>
> The QOS SRND talks about this for the 6500 and 3550 switches (perhaps
> others too).
>
> -Ryan
>
> On Sep 28, 2006, at 10:22 AM, Aman Chugh wrote:
>
> All,
>
> I would like to understand the default behaviour for QOS marking set
> by an Ip phone for voice packets,In my scenario if dont have any qos
> settings configured on the switch ,will the switch disregard/remove
> the marking set by a cisco ipphone before passing them on next hop
> device,I ask this because as I have configured CBWFQ with LLQ on my
> router but dont have any qos settings on my switch where my phone
> connects ,I have not checked this out with a sniffer just wanted to
> know if any one in the group knows about the same.
>
> Thanks for the help
>
> Aman
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