[LARTC] Re: equal-cost multipath in 2.6.7

[LARTC] Re: equal-cost multipath in 2.6.7

[Darshan Purohit]

Sending out this question again. 

On 5/24/05, Darshan Purohit <purohitdarshan@gmail.com> wrote:
> I have question about multipath routing. I am running a 2.6.7 kernel (gentoo).
> I have  a route with three nexthops on the same interface. I see a
> different nexthop being picked for different destination addresses.
> All is fine.
> 
> Now if one of the nexthop goes down (arp entry times out and arp
> request doesnt get a response), does it remove the nexthop from
> contention and only use the remaining two from this point on ?  What
> about the flows for which this nexthop was chosen in the recent past.
> Would they move to a different nexthop ?
> 
> Can anyone please point me to  implementation details about how a
> nexthop is chosen and what is the algorithm used in case of multipath
> routes and how to fine-tune the behaviour.
> 
> Thanks.
> Darshan.
>
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Re: [LARTC] Re: equal-cost multipath in 2.6.7

[gypsy]

Darshan Purohit wrote:
> 
> Sending out this question again.
> 
> On 5/24/05, Darshan Purohit <purohitdarshan@gmail.com> wrote:
> > I have question about multipath routing. I am running a 2.6.7 kernel (gentoo).
> > I have  a route with three nexthops on the same interface. I see a
> > different nexthop being picked for different destination addresses.
> > All is fine.
> >
> > Now if one of the nexthop goes down (arp entry times out and arp
> > request doesnt get a response), does it remove the nexthop from
> > contention and only use the remaining two from this point on ?  What
> > about the flows for which this nexthop was chosen in the recent past.
> > Would they move to a different nexthop ?
> >
> > Can anyone please point me to  implementation details about how a
> > nexthop is chosen and what is the algorithm used in case of multipath
> > routes and how to fine-tune the behaviour.
> >
> > Thanks.
> > Darshan.

I suggest you ask Julian Anastasov:

http://www.ssi.bg/~ja/

--
gypsy
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