Re: [j-nsp] BGP load balancing over multiple links

Leonardo Souza leonardo.gama at gmx.net
Wed Jul 27 17:29:13 EDT 2005


Hello Roque.

> Would you be more specific as to what kind of problem ? is this a
> question of flows being distributed in a unequal / unexpected way ?
> Are you using per flow load balancing (which in the configuration is
> called "per-packet") ? or per prefix load balancing ?
The flows was being distributed in a totally unequal way, causing  overload
of some links (every STM-4).
I am using per flow load balancing. 

> Which platform ?
M-40

> While i don't yet know which algorithm you are talking about i'm not
> aware any that "doesn't work properly"...
> Often, the expected behavior is not quite clear. A hash based algorithm
> will never, in practice, give you a perfect distribution along links. It
> will be somehow unbalanced, while that unbalance depends on the traffic
> patterns that you are seeing.
Ok, the traffic never will be equally distributed, but i was surprised with
this strange behaviour...Never this happened.

thanks.
Leonardo Gama

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