Fixing Backbone Partition with Dynamic Virtual Links

Document Type Expired Internet-Draft (individual)
Author Zhaohui Zhang 
Last updated 1997-11-26
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


This document proposes a Dynamic Virtual Link (DVL) algorithm to dynamically detect and fix OSPF backbone area partition. In the DVL algorithm, each ABR periodically checks if it can reach via backbone area all other ABRs that it can reach via its transit areas. If not, it knows that a backbone partition has occurred and a spanning tree of Dynamic Virtual Links are created. When the DVLs are not needed, they are automatically deleted.


Zhaohui Zhang (

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