Cisco Cisco Packet Data Interworking Function (PDIF)
RoHC Profile Common Options Configuration Mode Commands
▀ delay-release-hc-context-timer
▄ Command Line Interface Reference, StarOS Release 16
8012
delay-release-hc-context-timer
Sets a delay in releasing Robust Header Compression (RoHC) contexts allowing for context continuation during intra-
gateway handoffs.
gateway handoffs.
Product
HSGW
PDSN
Privilege
Administrator
Mode
Exec > Global Configuration > RoHC Profile Configuration > RoHC Profile Common Options Configuration
configure > rohc-profile profile-name profile_name > compression-options
Entering the above command sequence results in the following prompt:
[context_name]host_name(config-rohcprofile-profile_name-common)#
Syntax
delay-release-hc-context-timer seconds
no delay-release-hc-context-timer
no
Removes previously configured value for this command. No value disables the feature.
seconds
Specifies the number of seconds the system delays before releasing the header compression context as an
integer from 0 to 65535.
integer from 0 to 65535.
Usage
Use this command to set a delay in releasing a header compression context. THis command is necessary
when employing RoHC and mobility. Typically, when an RP connection is released, the header compression
context is also released immediately. However, in mobility situations, such as intra-PDSN handoffs, the
header compression context should be preserved. Adding a delay to cover the handoff time allows the context
to be maintained.
A header compression context contains the compression/decompression configuration and statistics for the
session.
when employing RoHC and mobility. Typically, when an RP connection is released, the header compression
context is also released immediately. However, in mobility situations, such as intra-PDSN handoffs, the
header compression context should be preserved. Adding a delay to cover the handoff time allows the context
to be maintained.
A header compression context contains the compression/decompression configuration and statistics for the
session.
Example
The following command sets the header compression release delay to 20 seconds:
delay-release-hc-context-timer 20