OSPF-TE Extensions for General Network Element Constraints

The information below is for an old version of the document
Document Type Expired Internet-Draft (ccamp WG)
Authors Fatai Zhang  , Greg Bernstein  , Jianrui Han  , Young Lee  , Yunbin Xu 
Last updated 2012-03-26 (latest revision 2011-09-22)
Replaces draft-zhang-ccamp-general-constraints-ospf-ext
Stream Internet Engineering Task Force (IETF)
Expired & archived
pdf htmlized (tools) htmlized bibtex
Stream WG state WG Document
Document shepherd None
IESG IESG state Expired
Consensus Boilerplate Unknown
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


Generalized Multiprotocol Label Switching can be used to control a wide variety of technologies including packet switching (e.g., MPLS), time-division (e.g., SONET/SDH, 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 OSPF routing protocol extensions to support these kinds of constraints under the control of Generalized MPLS (GMPLS).


Fatai Zhang (zhangfatai@huawei.com)
Greg Bernstein (gregb@grotto-networking.com)
Jianrui Han (hanjianrui@huawei.com)
Young Lee (ylee@huawei.com)
Yunbin Xu (xuyunbin@mail.ritt.com.cn)

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)