PDSN Service RoHC Configuration Mode Commands

PDSN Service RoHC Configuration Mode Commands
 
The PDSN Service RoHC Configuration Mode is used to configure RoHC (Robust Header Compression) parameters the PDSN service conveys to the PCF in the initial A11 RRP message before PPP authentication.
note_smallImportant: The commands, keywords and variables in this mode are available dependent on platform type, product version, and installed license(s).
cid-mode
Enters the RoHC Profile Compression Options Configuration mode.and configures options that apply during RoHC compression for the current RoHC profile.
Product
PDSN
Privilege
Security Administrator, Administrator
Syntax
cid-mode { large | small } max-cid integer
default cid-mode
default
Reset all options in the RoHC Profile Compression Configuration mode to their default values.
large
Use large packets with optional information for RoHC
small
This is the default packet size.
Use small RoHC packets.
max-cid integer
Default: 15
The highest context ID number to be used by the compressor. integer must be an integer from 0 through 15 when small packet size is selected and must be an integer from 0 through 31 when large packet size is selected.
Usage
Use this command to set the RoHC packet size and define the maximum
Example
The following command sets large RoHC packet size and sets the maximum CID to 100:
cid-mode large max-cid 100
The following command sets the cid-mode to the default settings of small packets and max-cid 0:
default cid-mode
end
Exits the current configuration mode and returns to the Exec mode.
Product
All
Privilege
Security Administrator, Administrator
Syntax
end
Usage
Use this command to return to the Exec mode.
exit
Exits the current mode and returns to the parent configuration mode.
Product
All
Privilege
Security Administrator, Administrator
Syntax
exit
Usage
Use this command to return to the parent configuration mode.
mrru
Sets the size of the largest reconstructed reception unit, in octets, that the decompressor is expected to reassemble from segments. The size includes the CRC. If MRRU is negotiated to be 0, no segment headers are allowed on the channel.
Product
PDSN
Privilege
Security Administrator, Administrator
Syntax
mrru num_octets
default mrru
default
reset the value of this command to its default setting
num_octets
Default: 0
This is the number of octets for the maximum size of the largest reconstructed reception unit allowed. num_octets must be an integer from 0 through 65535.
Usage
Use this command to set the size, in octets, of the largest reconstructed reception unit, in octets, that the decompressor is expected to reassemble from segments.
Example
The following command sets the largest reconstructed reception unit to 1024 octets:
mrru 1024
The following command resets the mrru size to its default of 0 octets:
default mrru
profile
Specifies the header compression profiles to use. A header compression profile is a specification of how to compress the headers of a specific kind of packet stream over a specific kind of link. At least one profile must be specified.
Product
PDSN
Privilege
Security Administrator, Administrator
Syntax
profile { [ esp-ip ] [ rtp-udp ] [ udp-ip ] [ uncompressed-ip ] }
default profile
default
Default: esp-ip rtp-udp udp-ip uncompressed-ip
This command sets the RoHC profile configuration back to its default setting.
esp-ip
This enables RoHC Profile 0x0003 which is for ESP/IP compression, compression of the header chain up to and including the first ESP header, but not subsequent subheaders.
rtp-udp
This enables RoHCProfile 0x0001 which is for RTP/UDP/IP compression
udp-ip
This enables RoHC Profile 0x0002 which is for UDP/IP compression, compression of the first 12 octets of the UDP payload is not attempted.
uncompressed-ip
This enables RoHC Profile 0x0000 which is for sending uncompressed IP packets.
Usage
Us this command to specify the RoHC header compression profiles to use.
Example
The following command sets the profiles to use as esp-ip and rtp-udp:
profile esp-ip rtp-udp
 
 
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