Correct Transaction Handling for 2xx Responses to Session Initiation Protocol INVITE Requests
RFC 6026, “Correct Transaction Handling for 2xx Responses to Session Initiation Protocol INVITE Requests”, is a Proposed Standard document published in September 2010 by R. Sparks, T. Zourzouvillys. It updates RFC 3261. The canonical text is published by the RFC Editor.
Abstract
This document normatively updates RFC 3261, the Session Initiation Protocol (SIP), to address an error in the specified handling of success (2xx class) responses to INVITE requests. Elements following RFC 3261 exactly will misidentify retransmissions of the request as a new, unassociated request. The correction involves modifying the INVITE transaction state machines. The correction also changes the way responses that cannot be matched to an existing transaction are handled to address a security risk. [STANDARDS-TRACK]
What “Proposed Standard” means
An entry-level standards-track specification: stable, peer-reviewed and a solid basis for implementation, though it may still evolve before becoming an Internet Standard.
The canonical text of RFC 6026 is hosted at rfc-editor.org. Available in TXT,HTML.
- RFC 6025 ASN.1 Translation
- RFC 6027 IPsec Cluster Problem Statement
- RFC 6024 Trust Anchor Management Requirements
- RFC 6028 Host Identity Protocol Multi-Hop Routing Extension
- RFC 6023 A Childless Initiation of the Internet Key Exchange Version 2 Security Association
- RFC 6029 A Survey on Research on the Application-Layer Traffic Optimization Problem
- RFC 6022 YANG Module for NETCONF Monitoring
- RFC 6030 Portable Symmetric Key Container