Claudio Jeker a icrit :
Normaly you prepend some AS to the smaller link to make the pathes comming
from that link more or less equal length with the other one.
You may additionally classify the prefixes by communities but that only
works if your uplink provider is setting them with some useful value.
There are some other tricks like tagging the uplinks of your uplink
provider. But your right we need AS path regex support...
Wow ... is it possible for the 3.9 release ? I unfortunately had my last
C course some 6 years ago and did not practice much ... I wish I could
help.
As the AS-path length is already a test made somewhere in the way, I
suppose it is should not be too risky to add it ?
I may try using "prefixlen" insted ... would something like
match prefixlen > 16 set localpref +10
This will not make you happy. Prefixlen is not a good discriminator you
may select the worst path and end up with non optimal routing.
You are right, it is not a good discriminator, but I fear I have no
other choice now ?
One important thing about traffic engineering is to know your traffic.
Certainly, but this is a new install ... it will take some time :-)
Thanks for your work.
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