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RFC 3261, "SIP: Session Initiation Protocol", June 2002

Note: This RFC has been updated by RFC 3265, RFC 3853, RFC 4320, RFC 4916, RFC 5393, RFC 5621, RFC 5626, RFC 5630, RFC 5922, RFC 5954, RFC 6026, RFC 6141, RFC 6665, RFC 6878, RFC 7462, RFC 7463, RFC 8217, RFC 8591, RFC 8760, RFC 8898, RFC 8996

Source of RFC: sip (rai)

Errata ID: 3102
Status: Held for Document Update
Type: Technical
Publication Format(s) : TEXT

Reported By: Alec Davis
Date Reported: 2012-02-01
Held for Document Update by: Robert Sparks

Section 12.2.1.1 says:

      With a length of 32 bits, a client could generate, within a single
      call, one request a second for about 136 years before needing to
      wrap around.  The initial value of the sequence number is chosen
      so that subsequent requests within the same call will not wrap
      around.

It should say:

      With a length of 32 bits, a client could generate, within a single
      call, one request a second for about 136 years before exhausting
      available sequence numbers. Sequence numbers must not wrap around to 0.
      The initial value of the sequence number (less than 2**31) is chosen
      so that subsequent requests within the same call will not exceed 2**32-1.
      

Notes:

Highlight that within a dialog sequence numbers;
1). can increment to 2**32-1
2). must not wrap around to 0

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