07-11-2005 10:26 PM
Hello,
Does MPLS base links support Rtp Header Compression.
Thanks in advance
Vijay
07-12-2005 01:29 PM
The last I heard of this is that it was not supported.
Hope this helps,
07-24-2005 10:59 PM
Where do you want to use RTP compression ?
Gautam
07-27-2005 11:05 PM
Dear Gautam ,
I want to use the RTP Compression on the MPLS link for Voice traffic.
Vijay
07-28-2005 05:39 PM
YES, RTPHC is supported in PE/CE link (ip2tag switching), this works well with later 12.3 code.
following configuration is valid for distributed (75xx, dCRTP etc.) and non-distributed 7206
interface Multilink47
bandwidth 128
ip vrf forwarding zzz
ip address
ip tcp header-compression iphc-format
no cdp enable
ppp multilink
ppp multilink fragment-delay 10
ppp multilink interleave
multilink-group 47
ip rtp header-compression iphc-format
interface Serial4/0/1:15
bandwidth 128
no ip address
encapsulation ppp
no cdp enable
ppp multilink
multilink-group 47
Regards
Sanjeewa
07-28-2005 06:59 PM
How about PE/PE link (tag2tap)?
Did the compressed packet be decompressed auto in the link which didn't enable the rtphc?
07-30-2005 09:44 PM
In tag2tag we are not dealing with IP, just switching MPLS, In other words your voice packet is now encapsulated in MPLS frame. Core will have no idea whether it is your voice packet or payroll information :)
Regards
Sanjeewa
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