Technical Summary
Generalized Multiprotocol Label Switching (GMPLS) can be used to
control a wide variety of technologies including packet switching
(e.g., MPLS), time-division (e.g., SONET/SDH, Optical Transport
Network (OTN)), wavelength (lambdas), and spatial switching (e.g.,
incoming port or fiber to outgoing port or fiber). In some of these
technologies, network elements and links may impose additional
routing constraints such as asymmetric switch connectivity, non-
local label assignment, and label range limitations on links. This
document describes Open Shortest Path First (OSPF) routing protocol
extensions to support these kinds of constraints under the control
of GMPLS.
Working Group Summary
This topic been discussed in the WG for a very long time, perhaps 6
years. Support for the work has been tepid, but there are multiple
sets of contributors who would like to see the work result in proposed
standards.
Document Quality
The base GMPLS routing protocol has been implemented. The extensions
defined in this document are compatible with earlier implementations.
Multiple implementors have stated their intent to implement, or have
stated that they have already implemented, the mechanisms defined in
this document.
Personnel
Lou Berger is the Document Shepherd
Adrian Farrel is the Responsible Area Director