OSPF Topology-Transparent Zone

Document Type Replaced Internet-Draft (individual)
Last updated 2015-04-29 (latest revision 2014-10-26)
Replaced by draft-ietf-ospf-ttz
Stream (None)
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


This document presents a topology-transparent zone in a domain. A topology-transparent zone comprises a group of routers and a number of links connecting these routers. Any router outside of the zone is not aware of the zone. The information about the links and routers inside the zone is not distributed to any router outside of the zone. Any link state change such as a link down inside the zone is not seen by any router outside of the zone.


Huaimo Chen (huaimo.chen@huawei.com)
Richard Li (renwei.li@huawei.com)
Gregory Cauchie (greg.cauchie@gmail.com)
Alvaro Retana (aretana@cisco.com)
Ning So (ningso01@gmail.com)
Vic Liu (liuzhiheng@chinamobile.com)
Mehmet Toy (mehmet_toy@cable.comcast.com)
Lei Liu (liulei.kddi@gmail.com)

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