Cisco MWR 2941 - Ip Rtp Header-Compression

Cisco MWR 2941 Router Command Reference, Release 15.0(1)MR
ip rtp header-compression
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Cisco MWR 2941 Router Command Reference, Release 15.0(1)MR
OL-23890-01
ip rtp header-compression
To enable Real-Time Transport Protocol (RTP) header compression, use the ip rtp
header-compression command in interface configuration mode. To disable RTP header compression,
use the no form of this command.
ip rtp header-compression [ietf-format] [periodic-refresh]
no ip rtp header-compression [passive | ietf-format] [periodic-refresh]
Syntax Description
Defaults This command is disabled by default.
Command Modes Interface configuration
Command History
Usage Guidelines You can compress IP/User Datagram Protocol (UDP)/RTP headers to reduce the size of your packets.
Compressing headers is especially useful for RTP because RTP payload size can be as small as 20 bytes,
and the uncompressed header is 40 bytes.
ietf-format Keyword
The ietf-format keyword indicates that the IETF format of header compression will be used. For HDLC
interfaces, the ietf-format keyword compresses only UDP packets. For PPP interfaces, when the
ietf-format keyword is specified, TCP header compression is also enabled. For this reason, the ip tcp
ietf-format Specifies the Internet Engineering Task Force (IETF) format of header
compression.
periodic-refresh (Optional) Indicates that the compressed IP header will be refreshed periodically.
Release Modification
11.3 This command was introduced.
12.0 This command was integrated into Cisco IOS Release 12.0. This command was
modified to include the iphc-format keyword.
12.3(2)T This command was integrated into Cisco IOS Release 12.3(2)T. This command
was modified to include the periodic-refresh keyword.
12.3(4)T This command was modified to include the ietf-format keyword.
12.2(25)S This command was integrated into Cisco IOS Release 12.2(25)S.
12.2(33)SRA This command was integrated into Cisco IOS Release 12.2(33)SRA.
12.2SX This command is supported in the Cisco IOS Release 12.2SX train. Support in a
specific 12.2SX release of this train depends on your feature set, platform, and
platform hardware.
12.4(20)MR This command was integrated into Cisco IOS Release 12.4(20)MR.
12.2(33)MRA This command was integrated into Cisco IOS Release 12.2(33)MRA.
15.0(1)MR This command was integrated into Cisco IOS Release 15.0(1)MR.