Title: MPLS Loop Prevention Mechanism
Author(s): Y. Ohba, Y. Katsube, E. Rosen, P. Doolan.
Status: EXPERIMENTAL
Date: Feb 2001
Length: 93523
This paper presents a simple mechanism, based on "threads", which can be used to prevent Multiprotocol Label Switching (MPLS) from setting up label switched path (LSPs) which have loops. The mechanism is compatible with, but does not require, VC merge. The mechanism can be used with either the ordered downstream-on-demand allocation or ordered downstream allocation. The amount of information that must be passed in a protocol message is tightly bounded (i.e., no path- vector is used). When a node needs to change its next hop, a distributed procedure is executed, but only nodes which are downstream of the change are involved.
[sh-index] Back to list of manuals
|
| |
