BGP Wedgies
RFC 4264, “BGP Wedgies”, is an Informational document published in November 2005 by T. Griffin, G. Huston. The canonical text is published by the RFC Editor.
Abstract
It has commonly been assumed that the Border Gateway Protocol (BGP) is a tool for distributing reachability information in a manner that creates forwarding paths in a deterministic manner. In this memo we will describe a class of BGP configurations for which there is more than one potential outcome, and where forwarding states other than the intended state are equally stable. Also, the stable state where BGP converges may be selected by BGP in a non-deterministic manner. These stable, but unintended, BGP states are termed here "BGP Wedgies". This memo provides information for the Internet community.
What “Informational” means
Published for the general information of the community. It does not define an IETF standard and carries no standards-track status.
The canonical text of RFC 4264 is hosted at rfc-editor.org. Available in TXT,HTML.
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