{ } in BGP.as_path

Vincent Bernat bernat at luffy.cx
Fri Aug 25 22:26:27 CEST 2017

 ❦ 25 août 2017 19:27 +0300, Mikhail Mayorov <mm at tagan.ru> :

> Hi all!
> What is mean '{}' in as_path?

This is a set. This part is not ordered. With only one AS, this doesn't
make much sense, but it can contain several of them. It usually means the
route is an aggregation of several routes.
Use the fundamental control flow constructs.
            - The Elements of Programming Style (Kernighan & Plauger)

More information about the Bird-users mailing list