Internet Assigned Numbers Authority • Domains • Protocols • Numbers • About Flow Spec Component Types Created 2009-06-02 Last Updated 2021-01-04 Available Formats [IMG] XML [IMG] HTML [IMG] TXT Registry Included Below • Flow Spec Component Types Flow Spec Component Types Expert(s) Susan Hares, Robert Raszuk Reference [RFC 8955][RFC 8956] Available Formats [IMG] CSV Range Registration Procedures 0 Reserved 1-127 Specification Required 128-254 Expert Review 255 Reserved Type Value IPv4 Name IPv6 Name Reference 0 Reserved Reserved [RFC 8955]; [RFC 8956] 1 Destination Prefix Destination IPv6 Prefix [RFC 8955]; [RFC 8956] 2 Source Prefix Source IPv6 Prefix [RFC 8955]; [RFC 8956] 3 IP Protocol Upper-Layer Protocol [RFC 8955]; [RFC 8956] 4 Port Port [RFC 8955]; [RFC 8956] 5 Destination Port Destination Port [RFC 8955]; [RFC 8956] 6 Source Port Source Port [RFC 8955]; [RFC 8956] 7 ICMP Type ICMPv6 Type [RFC 8955]; [RFC 8956] 8 ICMP Code ICMPv6 Code [RFC 8955]; [RFC 8956] 9 TCP Flags TCP Flags [RFC 8955]; [RFC 8956] 10 Packet Length Packet Length [RFC 8955]; [RFC 8956] 11 DSCP DSCP [RFC 8955]; [RFC 8956] 12 Fragment Fragment [RFC 8955]; [RFC 8956] 13 Unassigned Flow Label [RFC 8956] 14-254 Unassigned Unassigned 255 Reserved Reserved [RFC 8955]; [RFC 8956] Licensing Terms