RObust Header Compression (ROHC) Profile Identifiers (last updated 2008-05-01) Registries included below: - Profile identifiers Registry Name: Profile Identifiers Reference: [RFC4995] Registration Procedures: Specification Required Registry: Profile Identifier Usage Reference ------------------- ------------------------- --------- 0x0000 ROHC uncompressed [RFC4995] 0xnn00 Reserved 0x0001 ROHC RTP [RFC3095] 0x0101 ROHCv2 RTP [RFC5225] 0xnn01 Reserved 0x0002 ROHC UDP [RFC3095] 0x0102 ROHCv2 UDP [RFC5225] 0xnn02 Reserved 0x0003 ROHC ESP [RFC3095] 0x0103 ROHCv2 ESP [RFC5225] 0xnn03 Reserved 0x0004 ROHC IP [RFC3843] 0x0104 ROHCv2 IP [RFC5225] 0xnn04 Reserved 0x0005 ROHC LLA [RFC4362] 0x0105 ROHC LLA with R-mode [RFC3408] 0xnn05 Reserved 0x0006 ROHC TCP [RFC4996] 0xnn06 Reserved 0x0007 ROHC RTP/UDP-Lite [RFC4019] 0x0107 ROHCv2 RTP/UDP-Lite [RFC5225] 0xnn07 Reserved 0x0008 ROHC UDP-Lite [RFC4019] 0x0108 ROHCv2 UDP-Lite [RFC5225] 0xnn08 Reserved 0x0009-0xnn7F To be Assigned by IANA 0xnn80-0xnnFE To be Assigned by IANA 0xnnFF Reserved There appears to be further breakdown: In the 8 LSBs, the range 0 to 127 is reserved for IETF standard-track specifications; the range 128 to 254 is available for other specifications that meet this requirement (such as Informational RFCs). The LSB value 255 is reserved for future extensibility of the present specification. References ---------- [RFC3095] C. Bormann, C. Burmeister, M. Degermark, H. Fukushima, H. Hannu, L. Jonsson, R. Hakenberg, T. Koren, K. Le, Z. Liu, A. Martensson, A. Miyazaki, K. Svanbro, T. Wiebke, T. Yoshimura, and H. Zheng, "RObust Header Compression (ROHC): Framework and four profiles: RTP, UDP, ESP, and uncompressed", RFC 3095, June 2001. [RFC3242] L. Jonsson and G. Pelletier, "A Link-Layer Assisted ROHC Profile for IP/UDP/RTP", RFC 3242, April 2002. [RFC3408] Z. Liu and K. Le, "0-byte Support for R-mode in Extended Link-Layer Assisted ROHC Profile", RFC 3408, November 2002. [RFC3843] L-E. Jonsson and G. Pelletier, "RObust Header Compression (ROHC): A Compression Profile for IP", RFC 3843, June 2004. [RFC4019] G. Pelletier, "RObust Header Compression (ROHC): Profiles for UDP-Lite", RFC 4019, April 2005. [RFC4362] L-E. Jonsson, G. Pelletier and K. Sandlund, "RObust Header Compression (ROHC): A Link-Layer Assisted Profile for IP/UDP/RTP", RFC 4362, January 2006. [RFC4995] L-E. Jonsson, G. Pelletier, K. Sandlund, "The RObust Header Compression (ROHC) Framework", RFC 4995, July 2007. [RFC4996] G. Pelletier, L. Jonsson, K. Sandlund and M. West, "RObust Header Compression (ROHC): A Profile for TCP/IP (ROHC-TCP)", RFC 4996, July 2007. [RFC5225] G. Pelletier, K. Sandlund, "RObust Header Compression Version 2 (ROHCv2): Profiles for RTP, UDP, IP, ESP and UDP Lite", RFC 5225, April 2008. (created 2001-04-23) []