IPv4 TOS Byte and IPv6 Traffic Class Octet

(last updated 2001-09-06)

Registries included below:
- IPv4 TOS Byte and IPv6 Traffic Class Octet


Note:
Description:  The registrations are identical for IPv4 and IPv6.

Bits 0-5:  see Differentiated Services Field Codepoints Registry
           (http://www.iana.org/assignments/dscp-registry)


Registry Name: ECN Field (Bits 6-7)
Reference: [RFC3168]
Registration Procedures: RFC

Registry:
Binary  Keyword                                  Reference
------  ---------------------------------------  ---------
00      Not-ECT (Not ECN-Capable Transport)      [RFC3168]
01      ECT(1) (ECN-Capable Transport(1))        [RFC3168]
10      ECT(0) (ECN-Capable Transport(0))        [RFC3168]
11      CE (Congestion Experienced)              [RFC3168]


References
----------
[RFC3168]  K. Ramakrishnan, S. Floyd, and D. Black, "The Addition 
           of Explicit Congestion Notification (ECN) to IP", 
           RFC 3168, September 2001.


(created 2001-08-15)

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