On 29/01/06, Marco Fretz <[EMAIL PROTECTED]> wrote:

> ok thanks
>
> i think, 400 Mbit/s throughput should be enough for this usage.
>
> another question: does anyone know if there is a network card that can
> do something like cisco wirespeed routing? or is there anything that can
> handle software and hardware routing on a normal intel box?


Cisco wirespeed routing ? Sounds like a marketing term, since I don't
run into that very often in real life, at least not for internet routing.

>From what I know you wont find any hardware/software combo for openbsd
which will do the L3 forwarding in the network card hardware.


> > Since your boxes may have problems if you expect 1Gbps of traffic
> > load sharing may help the situation a bit.
> > There are a few ways of doing thit depending on environment.
>
> is there something that i can do with carp? or how is a router cluster
> to realise? the problem is, i dont want a fail over, i need performance.


If you expect the traffic pattern to be from many to many directly connected
hosts you can let carp handle loadsharing

carp man page:
     net.inet.carp.arpbalance    Balance local traffic using ARP.  Disabled
by
                                 default.

whats about this:
> i put 3 intel boxes with 2 Gbit nics in each one in a privat subnet with
> the first card. on the secount card i pull out 2 vlans on each machine.
> now i can do the routing with static routing on these 3 machines.
>
> vlan1 and 2 is on machine A
> vlan3 and 4 is on machine B
> vlan5 and 6 is on machine C
>
> so traffic from 5 to 6 is routet on C only, so i dont have any
> performance needed on A and B
>
> but traffice from e.g. 1 to 3 needs prformance on A and B.
>
> you think thats a good idea?


I would keep it simple. Put all boxes on all lans and use carp.
IP routing is unidirectional, traffic from A->B doesn't have to go over the
same box
as traffic B->A. With three boxes you can get speed and a be pretty
resilient also.

/Tony

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