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RTCP QoS marking

Hi

Could someone advise me what is the standard DIFFSER/TOS marking of RTCP packets.

How does Cisco IP Phones mark these packets (Diffserv EF or AF31)?

I have tried in vain to find this from various sources including the Cisco web site without success.

Hope you can help.

Best regards,

Phil

1 REPLY

Re: RTCP QoS marking

Hi

AFAIK the signalling messages are marked with DSCP 26 or Per-Hop Behavior (PHB) AF31, and RTP packets are marked with DSCP 46 (PHB EF)..

if u want to make it sure i would suggest to give a search with the kinda voip phone model ur using over there.

do find this link for more info..

http://www.cisco.com/en/US/products/hw/phones/ps379/products_implementation_design_guide_chapter09186a00802a0a1c.html

regds

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