Time To Live Processing in Multi-Protocol Label Switching Networks
RFC 3443, “Time To Live Processing in Multi-Protocol Label Switching Networks”, is a Proposed Standard document published in January 2003 by P. Agarwal, B. Akyol. It updates RFC 3032. It has since been updated by RFC 5462. The canonical text is published by the RFC Editor.
Abstract
This document describes Time To Live (TTL) processing in hierarchical Multi-Protocol Label Switching (MPLS) networks and is motivated by the need to formalize a TTL-transparent mode of operation for an MPLS label-switched path. It updates RFC 3032, "MPLS Label Stack Encoding". TTL processing in both Pipe and Uniform Model hierarchical tunnels are specified with examples for both "push" and "pop" cases. The document also complements RFC 3270, "MPLS Support of Differentiated Services" and ties together the terminology introduced in that document with TTL processing in hierarchical MPLS networks. [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 3443 is hosted at rfc-editor.org. Available in TXT,HTML.
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