Cisco Cisco Packet Data Gateway (PDG)
RoHC Profile Decompression Configuration Mode Commands
▀ preferred-feedback-mode
▄ Command Line Interface Reference, StarOS Release 18
8342
preferred-feedback-mode
Specifies the preferred feedback mode to use between the compressor and the decompressor
Product
HSGW
PDSN
Privilege
Administrator
Mode
Exec > Global Configuration > RoHC Profile Configuration >
configure > rohc-profile profile-name profile_name > decompression-options
Entering the above command sequence results in the following prompt:
[context_name]host_name(config-rohcprofile-profile_name-decomp)#
Syntax
preferred-feedback-mode { bidirectional-optimistic | bidirectional-reliable |
unidirectional }
unidirectional }
default preferred-feedback-mode
default
Returns the command to its default setting of bidirectional-optimistic.
bidirectional-optimistic
This mode is similar to the Unidirectional mode, with the exception of a feedback channel used to send error
recovery requests from the decompressor to compressor.
This is the default mode.
recovery requests from the decompressor to compressor.
This is the default mode.
bidirectional-reliable
Reliable mode makes extensive use of a feedback channel to avoid packet loss from context invalidation. A
secure reference model is used instead of the optimistic approach used in the other modes. With the secure
reference model, the confidence of the compressor depends on acknowledgements from the decompressor for
every context updating packet.
Periodically the compressor sends context updating packets repeatedly until an acknowledgement is received
from the decompressor.
secure reference model is used instead of the optimistic approach used in the other modes. With the secure
reference model, the confidence of the compressor depends on acknowledgements from the decompressor for
every context updating packet.
Periodically the compressor sends context updating packets repeatedly until an acknowledgement is received
from the decompressor.
unidirectional
Packets are sent in only one direction, from the compressor to the decompressor.
Usage
Use this command to specify the preferred feedback method to use between the compressor and the
decompressor for the current RoHC profile.
decompressor for the current RoHC profile.
Example