History Of Networking – Daniel Walton – BGP Churn And Add-Paths

Daniel Walton joins Network Collective for a second time to discuss the problem of churn in BGP routing tables, the steps taken to solve this problem, and the addition of add-path to the BGP protocol.

Links, FYI:

RFC 7911: Advertisement of Multiple Paths in BGP

RFC 3345: (Informational) Border Gateway Protocol (BGP) Persistent Route Oscillation Condition

Daniel Walton’s Presentation from NANOG 21 on BGP Churn

Daniel Walton
Russ White
Donald Sharp
Eyvonne Sharp

Outro Music:
Danger Storm Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 3.0 License


  1. […] Network Collective HoN – BGP Route Churn – Explanation for route churn, add-paths and other knobs. Again, the history portion helps understand when/how the problem arose. I find that critical to anticipate what will happen in the future if a design is carried forward. A good design tries to solve future problems before they arise. […]

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