BGP Topology Discovery Requirements

Document Type Expired Internet-Draft (individual)
Last updated 2019-03-05 (latest revision 2018-09-01)
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


For wide scale routing protocols to build their topology and reachability databases they need link neighbor discovery, link encapsulation data, and layer two liveness. BGP-LS and its enhancements provide an API to present much of these data to BGP protocols, but do not actually collect these data. This document explores the needs and criteria for the data needed.


Randy Bush (
Keyur Patel (

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