| This interface represents the RSeq header, as defined by
RFC3262, this
header is not part of RFC3261.
The RSeq header is used in provisional responses in order to transmit them
reliably. It contains a single numeric value from 1 to 2**32-1. The value of
the RSeq in each subsequent reliable provisional response for the same request
MUST be greater by exactly one. RSeq numbers MUST NOT wrap around. Because
the initial one is chosen to be less than 2**31 - 1, but the maximum is
2**32 - 1, there can be up to 2**31 reliable provisional responses per
request, which is more than sufficient. As the RSeq numbering space is within
a single transaction. This means that provisional responses for different
requests MAY use the same values for the RSeq number.
A server must ignore Headers that it does not understand. A proxy must not
remove or modify Headers that it does not understand.
author:
BEA Systems, NIST
version:
1.2 |