Traffic Engineering Extensions to IS-IS for Generalized MPLS control of Sonet/SDH Networks
Consult
Alcatel
This document introduces the Sonet/SDH traffic engineering extensions required for existing IGP protocols in support of Generalized MPLS (GMPLS) signalling as defined in [RFC-3471] and [GMPLS-SONET-SDH]. Using [GMPLS-RTG] as guideline, this memo specifies the GMPLS routing traffic engineering extensions to ISIS for Sonet/SDH networks. Based on the Traffic Engineering (TE) extensions defined in [ISIS- TE], the proposed approach is aligned with link bundling as defined in [MPLS-BDL] and extends the set of Extended IS Reachability sub- TLVs proposed in [GMPLS-ISIS] to Sonet/SDH networks. The proposed extensions do not preclude any further integration with the Interface Switching Capability Descriptor specified in [GMPLS-ISIS].