BGP is utilised as a key intra- and inter-autonomous system routing
protocol in modern IP networks. The failure modes, as defined by the
original protocol standards, are based on a number of assumptions
around the impact of session failure. Numerous incidents both in the
global Internet routing table and within service provider networks
have been caused by strict handling of a single invalid UPDATE
message causing large-scale failures in one or more autonomous
systems.
This memo describes the current use of BGP within service provider
networks, and outlines a set of requirements for further work to
enhance the mechanisms available to a BGP implementation when
erroneous data is detected. Whilst this document does not provide
specification of any standard, it is intended as an overview of a set
of enhancements to BGP to improve the protocol's robustness to suit
its current deployment.
datatracker.ietf.org