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RFC 4960, "Stream Control Transmission Protocol", September 2007

Note: This RFC has been obsoleted by RFC 9260

Note: This RFC has been updated by RFC 6096, RFC 6335, RFC 7053, RFC 8899

Source of RFC: tsvwg (wit)
See Also: RFC 4960 w/ inline errata

Errata ID: 4400
Status: Verified
Type: Technical
Publication Format(s) : TEXT
Reported By: Julien Pourtet
Date Reported: 2015-06-25
Verifier Name: Martin Stiemerling
Date Verified: 2015-07-16

Section 5.1.6. says:

                                    /-- INIT ACK [Veri Tag=Tag_A,
                                   /             I-Tag=Tag_Z,
    (Cancel T1-init timer) <------/              Cookie_Z, & other info]
                                         (destroy temp TCB)
    COOKIE ECHO [Cookie_Z] ------\
    (Start T1-init timer)         \
    (Enter COOKIE-ECHOED state)    \---> (build TCB enter ESTABLISHED
                                          state)
                                   /---- COOKIE-ACK
                                  /
    (Cancel T1-init timer, <-----/

It should say:

                                    /-- INIT ACK [Veri Tag=Tag_A,
                                   /             I-Tag=Tag_Z,
    (Cancel T1-init timer) <------/              Cookie_Z, & other info]
                                         (destroy temp TCB)
    COOKIE ECHO [Cookie_Z] ------\
    (Start T1-cookie timer)       \
    (Enter COOKIE-ECHOED state)    \---> (build TCB enter ESTABLISHED
                                          state)
                                   /---- COOKIE-ACK
                                  /
    (Cancel T1-cookie timer, <---/

Notes:

Upon reception of an INIT ACK Endpoint A should start the T1-cookie timer, not the T1-init timer. Reception of a COOKIE-ACK cancels The T1-cookie timer, not the T1-init timer.

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RFC 4960, "Stream Control Transmission Protocol", September 2007