[cisco-voip] CallManager LAN QOS Question [bcc][faked-from][html-rem]

[TianLun Song]

I think you mean TOS bit instead of COS

On Dec 10, 2007 4:29 PM, <steve.siltman at assurant.com> wrote:

>
> Doesn't the COS bits make up the first 3 bits of the DSCP?  I should see
> both if the sniffer lets me. :(
> It is setup as an access port.
>
> Thanks,
>
> Steve Siltman
> Assurant Corporate Technology
> Work: 651-361-4752
> Cell: 651-336-5563
> steve.siltman at assurant.com
>
>
>  *"Avner Izhar" <aizhar at ccbootcamp.com>*
>
> 12/10/2007 03:17 PM
>   To
> "Linsemier, Matthew" <MLinsemier at apcapital.com>, <
> steve.siltman at assurant.com>, <cisco-voip at puck.nether.net>  cc
>   Subject
> RE: [cisco-voip] CallManager LAN QOS Question [bcc][faked-from][html-rem]
>
>
>
>
> Hi,
>
> Call Manager is doing DSCP based marking and not COS based, unless we talk
> about different things and mean the same, it is acting as it should.
>
> Have you configured trunk toward the Call Manager? It should be an access
> port.
>
> HTH,
> -------------------------------------------
> thanks,
> Avner Izhar
> CCIE#15999 (Voice), CCVP, CCSI# 31623
> Technical Instructor
> CCBOOTCAMP - A Cisco Sponsored Organization (SO)
> Email: aizhar at ccbootcamp.com
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>
>
> -----Original Message-----
> From: cisco-voip-bounces at puck.nether.net [mailto:
> cisco-voip-bounces at puck.nether.net] On Behalf Of Linsemier, Matthew
> Sent: Monday, December 10, 2007 11:56
> To: steve.siltman at assurant.com; cisco-voip at puck.nether.net
> Subject: Re: [cisco-voip] CallManager LAN QOS Question
> [bcc][faked-from][html-rem]
>
> Are you just sniffing COS?  Are the DSCP values correct that CallManager
> is sending out?  RTP should be marked as DSCP EF and all SCCP,H.323, and
> SIP should be marked as DSCP C3.  What are your DSCP -> COS mappings on
> your switch?
>
>
>
> From: cisco-voip-bounces at puck.nether.net
> [mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of
> steve.siltman at assurant.com
> Sent: Monday, December 10, 2007 2:20 PM
> To: cisco-voip at puck.nether.net
> Subject: [cisco-voip] CallManager LAN QOS Question
>
>
>
>
> Hi All.
>
> I implemented QOS on the LAN this weekend in our shop.  I configured 6
> closets running a slew of 3750's and four 6500 CAT switches (with a few
> 6x48 blades).   I have one issue so far.  I'm sniffing one of the Call
> Manager interfaces on the switch and all packets coming into the
> CallManager seem to have the correct COS assigned.  All of the packets
> sourced by CallManager are COS = 0.  This makes it look like CallManager
> is changing these packets to 0.  Did I miss something on CallManager
> that I need to enable?   The clusterwide parameters (System - QOS) under
> Service Parameters is set to Normal Priority, EF, AF41 and CS3.
>
> Running CallManager 4.1.3sr5d
>
> Thanks,
>
> Steve Siltman
> Assurant Corporate Technology
> Work: 651-361-4752
> Cell: 651-336-5563
> steve.siltman at assurant.com
>
>
>
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-- 
TianLun Song
CCVP, CCNP, M.Eng
Cell:1-416-829-3630
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