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