SACK-IMMEDIATELY Extension for the Stream Control Transmission Protocol, November 2013
- File formats:
- PROPOSED STANDARD
- Obsoleted by:
- RFC 9260
- RFC 4960
- M. Tuexen
- tsvwg (tsv)
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This document updates RFC 4960 by defining a method for the sender of a DATA chunk to indicate that the corresponding Selective Acknowledgment (SACK) chunk should be sent back immediately and should not be delayed. It is done by specifying a bit in the DATA chunk header, called the (I)mmediate bit, which can get set by either the Stream Control Transmission Protocol (SCTP) implementation or the application using an SCTP stack. Since unknown flags in chunk headers are ignored by SCTP implementations, this extension does not introduce any interoperability problems.
For the definition of Status, see RFC 2026.
For the definition of Stream, see RFC 8729.