[dev] Babel Admin Distance

[Donald Sharp]

All -

Renato and I noticed that zebra was not properly handling Admin
distance correctly.  As part of cleaenup we created this PR:

https://github.com/FRRouting/frr/pull/1160

Which has this commit:

https://github.com/FRRouting/frr/pull/1160/commits/c710b277cfde65fab8ae071fd80992e836bff7f2

During discussion about this the other night, I guessed at an admin
distance of 100 for Babel.  In conversation this morning with Don
Slice he indicated that a number of 100 might be a bit low as that do
we really trust Babel more than OSPF?  Do people have opinions on what
the Admin Distance should be set too?

thanks!

donald