[cisco-voip] Default Qos behaviour

[Ryan Ratliff]

"When configured as an access layer switch, the recommended software  
for the Supervisor is CatOS;
when configured as a distribution or core layer switch, the  
recommended software is Cisco IOS.
Furthermore, at the time of writing, Catalyst 6500 IOS does not yet  
support AutoQoS nor the
conditional-trust feature, therefore only CatOS examples of these  
models are given. However, both
AutoQoS VoIP and conditional trust have been committed for future  
releases of Catalyst 6500 IOS."

I take this to mean a later version of the SRND may well have config  
examples for IOS once the IOS is released that supports more of the  
features.

-Ryan

On Sep 28, 2006, at 12:27 PM, Carter, Bill wrote:

Ryan,

On this topic...The QoS SRND has some very good information/scenarios
for configuring Cat 6500s for QoS.  The problem is, there is multiple
scenarios and configuration samples for Cat OS, but 1 or 2 for Cat IOS.

Could you pass word along to the QoS SRND group that we would appreciate
more Cat 6500 IOS configuration samples?

Thanks

-----Original Message-----
From: cisco-voip-bounces at puck.nether.net
[mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Ryan Ratliff
Sent: Thursday, September 28, 2006 10:54 AM
To: Aman Chugh
Cc: cisco-voip at puck.nether.net
Subject: Re: [cisco-voip] Default Qos behaviour

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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