Reference document

Org
IETF
Pubnum
RFC 3032
Date
2001
Version
Title
MPLS Label Stack Encoding

Applicability

Multi-Protocol Label Switching (MPLS) requires a set of procedures for augmenting network layer packets with label stacks, thereby turning them into labeled packets. Routers which support MPLS are known as Label Switching Routers, or LSRs. In order to transmit a labeled packet on a particular data link, an LSR must support an encoding technique which, given a label stack and a network layer packet, produces a labeled packet. This document specifies the encoding to be used by an LSR in order to transmit labeled packets on Point-to-Point Protocol (PPP) data links, on LAN data links, and possibly on other data links as well. On some data links, the label at the top of the stack may be encoded in a different manner, but the techniques described here MUST be used to encode the remainder of the label stack. This document also specifies rules and procedures for processing the various fields of the label stack encoding.

Responsible Party

Name
NCIA/NSII

Status

URI
https://www.ietf.org/rfc/rfc3032.txt

History

Flag Date RFC Version
added 2011-10-13 5-28 6.0
changed 2017-01-14 9-19 10.0
UUID
eb2a0f38-b032-49ca-a37e-91de8ca6b928