[cisco-voip] Voice header compression Problem with IETFencapsulation

[Yasser Aly]

Found a good document providing a solution for this named:
"VoIP QoS for Frame Relay to ATM Internetworking with LLQ, PPP LFI and cRTP"
 
http://www.cisco.com/en/US/tech/tk652/tk701/technologies_configuration_example09186a0080101210.shtml


"Voll, Scott" <Scott.Voll at wesd.org> wrote:
v\:* {behavior:url(#default#VML);}o\:* {behavior:url(#default#VML);}w\:* {behavior:url(#default#VML);}.shape {behavior:url(#default#VML);}
I had the same problem. The only work around I got from TAC was “don’t use rtp header compression”

.. 

 

Scott

 

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From: cisco-voip-bounces at puck.nether.net [mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Yasser Aly
Sent: Wednesday, June 08, 2005 6:38 AM
To: cisco-nsp at puck.nether.net; cisco-voip at puck.nether.net
Subject: [cisco-voip] Voice header compression Problem with IETFencapsulation


 

Hello,


 


  I am trying to apply rtp header compression on a frame-relay interface.


 


I am using the configuration below but error popping shows that header compression is not supported with IETF encapsulation. I have to use IETF as the other end of this connection is over ATM interface so Frame-Relay to ATM internetworking is in the middle. What can be done to solve this problem? 


 


Configuration Below:


==============


 


 


interface Serial0/0
 no ip address
 encapsulation frame-relay IETF
 no fair-queue
 frame-relay traffic-shaping
 frame-relay lmi-type ansi


 


error message while adding the ip rtp header compression or fr ip rtp header compression:


 


Router(config)#interface Serial0/0
Router(config-if)#ip rtp header-compression    


 


%Interface is set for IETF encapsulation! IP header compression is supported only over CISCO encapsulation! 



Router(config-if)#


Router(config-if)#frame-relay ip rtp header-compression 
%Interface is set for IETF encapsulation! IP header compression is supported only over CISCO encapsulation! 



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