OSPF-TE Extensions for General Network Element Constraints

Document Type Replaced Internet-Draft (individual)
Authors Fatai Zhang  , Young Lee  , Jianrui Han  , Greg Bernstein  , Yunbin Xu  , Guoying Zhang  , Dan Li  , Ming Chen  , Yabin Ye 
Last updated 2011-03-17 (latest revision 2010-09-10)
Replaced by RFC 7580
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Expired & archived
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This Internet-Draft is no longer active.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 <Zhang> Expires March 2011 [page 1] draft-zhang-ccamp-general-constraints-ospf-ext-00.txt September 2010 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)
Young Lee (ylee@huawei.com)
Jianrui Han (hanjianrui@huawei.com)
Greg Bernstein (gregb@grotto-networking.com)
Yunbin Xu (xuyunbin@mail.ritt.com.cn)
Guoying Zhang (zhangguoying@mail.ritt.com.cn)
Dan Li (danli@huawei.com)
Ming Chen (minc@huawei.com)
Yabin Ye (yabin.ye@huawei.com)

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