[RFC1761] defines the snoop file format used to store captured network packets for tools that capture, display, and interpret network traffic. The file format specifies a header containing the Datalink Type field that identifies the network's datalink type. This document defines new values for this field, as well as an IANA registry for future datalink types.
This document created a new IANA registry named "Snoop Datalink Types" to hold the various possible 32-bit (4 octet) snoop datalink types. This new registry holds the values previously defined in [RFC1761] and tabulated below:
Datalink Type Code ------------- ----
IEEE 802.3 0 IEEE 802.4 Token Bus 1 IEEE 802.5 Token Ring 2 IEEE 802.6 Metro Net 3 Ethernet 4 HDLC 5 Character Synchronous 6 IBM Channel-to-Channel 7 FDDI 8 Other 9
Additionally, the new registry also holds the values defined above in section 2 of this document.
All new allocations and assignments to this registry starting from code 27 will follow the First Come First Served policy outlined in [BCP0026]. Type codes up to 26 not defined by this section of the document (10-15 and 19-25) are considered reserved.
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