--On 26 August 2011 15:56:03 +0100 Stuart Henderson <s...@spacehopper.org> wrote:

OpenBSD's ospfd used to do that, but then it was changed to a
better method; a carp interface in BACKUP state still causes an
announcement over OSPF, but with a high metric, this avoids a
blackhole in the time between the previous carp MASTER going
down and the BACKUP taking over.

So, talking of carp, what is the best way to change things like
metrics live?

I really don't want to programmatically rewrite my master bird.conf.
Being able to #include another file, which did a #define would be
really useful for things like this. Then I could just change the
file concerned (or better make it a symlink to a master or a slave
version)

--
Alex Bligh

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