RFC 7332

Loop Detection Mechanisms for Session Initiation Protocol (SIP) Back-to-Back User Agents (B2BUAs), August 2014

Canonical URL:
https://www.rfc-editor.org/rfc/rfc7332.txt
File formats:
Plain TextPDF
Status:
PROPOSED STANDARD
Authors:
H. Kaplan
V. Pascual
Stream:
IETF
Source:
straw (rai)

Cite this RFC: TXT  |  XML

DOI:  http://dx.doi.org/10.17487/RFC7332

Discuss this RFC: Send questions or comments to straw@ietf.org

Other actions: Find Errata (if any)  |  Submit Errata  |  Find IPR Disclosures from the IETF


Abstract

SIP Back-to-Back User Agents (B2BUAs) can cause unending SIP request routing loops because, as User Agent Clients, they can generate SIP requests with new Max-Forwards values. This document discusses the difficulties associated with loop detection for B2BUAs and the requirements for them to prevent infinite loops.


For the definition of Status, see RFC 2026.

For the definition of Stream, see RFC 4844.


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