Technical Summary
This document advances the Experimental NewReno specification defined in
RFC2582 to Proposed Standard.
The main change in this document relative to RFC 2582 is to specify the
Careful variant of NewReno's Fast Retransmit and Fast Recovery algorithms.
The base algorithm described in RFC 2582 did not attempt to avoid unnecessar
multiple Fast Retransmits that can occur after a timeout (described in more
detail in the section above). However, RFC 2582 defined "Careful" and "Less
Careful" variants that avoid these unnecessary Fast Retransmits, and
recommended the Careful variant - this specification only defines the
"Careful" variant.
This document also specifies two heuristics that the TCP sender MAY use to
decide to invoke Fast Retransmit even when the three duplicate
acknowledgements do not cover more than "recover".
Working Group Summary
The TSVWG strongly supported the advancement of this document.
Protocol Quality
This document was reviewed for the IESG by Jon Peterson.