carp+openospfd
Alexandre Biancalana
biancalana at gmail.com
Mon Aug 4 19:00:38 UTC 2008
On 8/1/08, Nikos Vassiliadis <nvass at teledomenet.gr> wrote:
> On Friday 01 August 2008 06:54:02 Alexandre Biancalana wrote:
> > The firewalls failover this is working great with Carp. My
> > difficulties is to configure OpenOSPFD to distribute routes in this
> > setup,
>
>
> Two points:
> 1) Did you try to run OSPF on the CARP interface?
> Or the physical one? I don't think running OSPF
> on the CARP interface will work, cause the CARP
> interface receives nothing while at BACKUP mode.
OpenOSPFD always see CARP interfaces as passive...
>
> No, OSPF cannot provide load balancing, as FreeBSD does not support
> equal cost multipath routing, that is you can use one and only one
> next hop for a destination. So, in short, OSPF will not do load
> balancing, as it does with other vendors you may be familiar with.
bad news... I remember now that multiple fibs are too new on FreeBSD...
Thinking again, I can survive with equal cost multipath routing and do
the failover via script...
How's good is our ECMP ? Have someone tested this ?
>
> If you run CARP on the LAN links as well(which you probably do),
> you should test and see how CARP's ARP level load balancing fits
> your network...
It's working as expected
Thank you again!
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