21 Jul
2019
21 Jul
'19
9:38 a.m.
As far as we are thinking about possible evolutions,
we can also add new
criteria. Ability to change link "weight" according to link quality (or
other parameters) may be an intesring thing.
Well, as soon as something is changed in the protocol you lose the big advantage of
running standard protocols available in standard firmware, see the AMPR RIP thing.
I don't know if BGP has some "weight"
parameter. OSPF has. It can not
change the weight dynamically, but it's possible to change that weight
by an external script. That's nice, and that's the reason why we choose
OSPF for our "internal" network.
I have considered doing similar things in BGP (adjusting prepend or local-pref
dynamically based on SNMP monitoring of the link).
We have not experimented with OSPF yet, I read in many places that it has problems
with scaling when the CPU power on routers is limited (like on old RB750s)
Rob