Name: draft-ladha-sctp-nonce-01
Title: ECN Nonces for Stream Control Transmission Protocol (SCTP)
State: Active
Authors: Sourabh Ladha
Group: Individual Submissions (none)
Date: 2004-09-17
This document describes the addition of the ECN-nonce RFC 3540 [5] to the
Stream Control Transmission Protocol (SCTP) RFC 2960 [8]. The ECN-nonce
reduces the vulnerability of ECN senders to misbehaving receivers that
conceal congestion signals like ECN marks and packet losses. The ECN-nonce
approach is different in SCTP because SCTP uses chunks for extensible
protocol features and is selective acknowlegement (SACK)-based; this
document describes those differences. In particular this document describes
(1) protocol extensions in the form of a single new parameter for the INIT/
INIT-ACK chunks and a single bit flag in the SACK chunk, and (2) rules
governing the sender and receiver side implementation. This document
outlines a minimum response that an SCTP sender should apply after
detecting a misbehaving receiver.
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