tree 7d52174915f5873c42902157b522b17520e58ac1
parent 24480d426046e46fbcec098be1147650d6d3ff50
author David Lamparter <equinox@opensourcerouting.org> 1420570404 +0100
committer David Lamparter <equinox@opensourcerouting.org> 1423256512 +0100

zebra: make MRIB lookup behaviour switchable

depending on the usage scenario (and availability of multitopology IGP
protocols, which is currently zero in Quagga), different approaches of
Multicast RPF lookups are useful.

Reference behaviours from commercial vendors are urib-only/mrib-only
(Juniper, depending on inet.2 availability) and lowest-distance (Cisco).
As we are currently without MT IGP support, mrib-first seems the most
useful default for Quagga.

Cc: Everton Marques <everton.marques@gmail.com>
Cc: Balaji G <balajig81@gmail.com>
Signed-off-by: David Lamparter <equinox@opensourcerouting.org>