> HSGW Service RoHC Configuration Mode Commands
> The HSGW Service RoHC Configuration Mode is used to configure Robust Header Compression (RoHC) parameters for the service.
> cid-mode
> This mode allows you to configure options that apply during RoHC compression for the service.
> Product
> HSGW
> Privilege
> 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
> Specifies the highest context ID number to be used by the compressor as an integer from 0 through 15 when small packet size is selected, and 0 through 31 when large packet size is selected. Default: 15
> 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
> Specifies the size of the largest reconstructed reception unit that the decompressor is expected to reassemble from segments. The size includes the CRC. If maximum received reconstructed unit (MRRU) is negotiated to be 0, no segment headers are allowed on the channel.
> Product
> HSGW
> Privilege
> Administrator
> Syntax
> mrru num_octets
> default mrru
> default
> Resets the value of this command to its default setting of 0.
> num_octets
> Specifies the number of allowed octets for the MRRU as an integer from 0 through 65535. Default: 0
> Usage
> Use this command to set the size, in octets, of the largest reconstructed reception unit 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
> HSGW
> Privilege
> Administrator
> Syntax
> profile { [ esp-ip ] [ rtp-udp ] [ udp-ip ] [ uncompressed-ip ] }
> default profile
> default
> Default: esp-ip rtp-udp udp-ip uncompressed-ip
> Returns the RoHC profile configuration to its default setting.
> esp-ip
> 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
> Enables RoHC Profile 0x0001 which is for RTP/UDP/IP compression
> udp-ip
> 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
> Enables RoHC Profile 0x0000 which is for sending uncompressed IP packets.
> Usage
> Use this command to specify the RoHC header compression profiles.
> Example
> The following command sets the profiles to use as esp-ip and rtp-udp:
> profile esp-ip rtp-udp

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