High Performance

Large number of instances

ExaBGP has an undocumented, but useful feature allowing to specify multiple configurations files.

For example :

./bin/exabgp -d exabgp-1.conf exabgp-2.conf

In that scenario, ExaBGP will re-fork and start one instance per configuration file. It helps reduce a little the memory utilisation when using many configuration files.

Linux 3.9 / BSD SO_REUSEPORT

It should be possible on recent Linux to run multiple ExaBGP binding to the same IP address. See this article for more information.