[LARTC] DGD patch not detecting dead gateway

[Manish Kathuria]

On 1/28/07, Tom Lobato <tomlobato at gmail.com> wrote:
> > Manish Kathuria Wrote:
> >
> >   The method I have adopted is to use a shell script which pings a
> > popular remote site 's IP (for example www.yahoo.com or
> > www.google.com) through each of the interfaces every 10 seconds. The
> > default multipath route is replaced by a single default gateway if
> > reply is not received for 4 consecutive tries from one of the links.
> > This is to avoid very frequent failovers. However, the link is treated
> > as live as soon as a  ping reply is received and the multipath route
> > is activated.
>  Now I'm using the ping options:
>
>     ping -n -w 10 -c 2 -I $lnk1_dev $lnk1_pingtarget
>
> But so I'm getting some false negatives. Can you show what ping options you
> use?
> Tom Lobato
>

Please see the script posted earlier. The simple ping command with the
following options is repeated every 10 seconds using an endless loop.

ping -I $EXTIF1 -c 1 $TESTIP > /dev/null  2>&1

-- 
Manish Kathuria
Tux Technologies
http://www.tuxtechnologies.co.in/