Cisco Cisco IOS Software Release 12.0(33)S
IP Header Compression Over Frame Relay for Interfaces Support
Enabing IPHC Support for Frame Relay Interfaces
6
IPHC Support for Frame Relay Interfaces
Configuring Compression Connections at Sub-Interface Level
To configure the header compression connections that can exist at subinterface level, perform the
following required steps:
following required steps:
SUMMARY STEPS
1.
enable
2.
configure terminal
3.
frame-relay ip rtp compression-connections <number>
4.
frame-relay ip tcp compression-connections <number>
DETAILED STEPS
Step 3
frame-relay ip rtp header-compression
Example:
Router(config)# interface Serial
3/0/0.1/1/1:0.1
Router(config-if)# frame-relay ip rtp
header-compression
Enables RTP header compression for the subinterface.
Note
The parameters passive and periodic-refresh are not
supported on Cisco 12000 Series Routers.
supported on Cisco 12000 Series Routers.
Step 4
frame-relay ip tcp header-compression
Example:
Router(config)# interface Serial
3/1/0.1/1/1:0.1
Router(config-if)# frame-relay ip tcp
header-compression
Enables TCP header decompression for all FR maps on a
physical subinterface.
physical subinterface.
Note
If this command is not given, all compressed TCP
packets received on the FR sub (interface) will be
dropped.
packets received on the FR sub (interface) will be
dropped.
Step 5
show ip tcp header-compression
Example:
Router# show ip tcp header-compression
Displays TCP header compression statistics for FR.
Step 6
show ip rtp header-compression
Example:
Router# show ip rtp header-compression
Displays RTP header compression statistics for FR.
Command or Action
Purpose
Command or Action
Purpose
Step 1
enable
Example:
Router> enable
Enables privileged EXEC mode. If prompted, enter your
password.
password.
Step 2
configure
terminal
Example:
Router# configure terminal
Enters global configuration mode.