RFC 986 (rfc986) - Page 2 of 7
Guidelines for the use of Internet-IP addresses in the ISO Connectionless-Mode Network Protocol
Alternative Format: Original Text Document
RFC 986 June 1986 DOD IP Addresses in ISO CLNP Octet +--------------------------------------+ +-------- | Network Layer Protocol Identifier | 1 : |--------------------------------------| : | Length Indicator | 2 : |--------------------------------------| : | Version/Protocol Id Extension | 3 : Fixed |--------------------------------------| : | Lifetime | 4 : Part |--------------------------------------| : |SP|MS|E/R| Type | 5 : |--------------------------------------| : | Segment Length | 6,7 : |--------------------------------------| : | Checksum | 8,9 : |--------------------------------------| +-------- | Destination Address Length Indicator | 10 : |--------------------------------------| : | Destination Address | 11 through m-1 : Address |--------------------------------------| : | Source Address Length Indicator | m : Part |--------------------------------------| : | Source Address | m+1 through n-1 : |--------------------------------------| +-------- | Data Unit Identifier | n,n+1 : |--------------------------------------| : Segment | Segment Offset | n+2,n+3 : ation |--------------------------------------| : | Total Length | n+4,n+5 : Part |--------------------------------------| +-------- | Options | n+6 through p : Options Part |--------------------------------------| +-------- | Data | p+1 through z : Data +--------------------------------------+ +-------- Figure 1: PDU Header Format Callon & Braun
