Thanks James. I appreciate your response.
Regards
Michael Knill
On 22/10/2013, at 8:29 AM, James Babiak <ja...@routed.com> wrote:
> Hey Michael,
>
> The script that I was referring to (back in 2010....wow how time flies) was
> primarily created by others at a company I am no longer with, so I am not at
> liberty to give it out.
>
> However, I can certainly confirm that it worked quite well and is very simple
> to implement. With some basic shell scripting, you could probably put
> something good together in under an hour. As I believe I mentioned
> previously, it basically used two static host routes to force traffic to
> certain IP addresses through each of the two circuits (Primary and Failover).
> Then we used pings to perform periodic beacon probing out each interface. If
> the IP being forced through the primary circuit failed to respond but the
> Failover IP did, it would assume the Primary circuit was down and change the
> default route to go through the Failover circuit. It would then continue to
> monitor the Primary circuit and, if it we started receiving responses again
> over a period of time (maybe a minute to prevent flapping), the default route
> would be changed back. While a Primary failure would of course kill any
> active calls, the Primary preempt wouldn't. The underlying type of circuit
> should be irrelevant.
>
> I would suggest using something like each circuits default gateway to ensure
> that a failed response truly indicated a circuit or similar failure. In other
> words, don't use something far away or that you don't have control over (i.e.
> 4.2.2.2). Otherwise, if it went unreachable for any reason, your system would
> failover unnecessarily.
>
> I do think it would be a useful feature to add into Astlinux though, as I
> could see many people utilizing it.
>
> Let me know if you have any questions.
>
> --James
>
>
> On Sun, Oct 20, 2013 at 6:27 PM, Michael Knill
> <michael.kn...@ipcsolutions.com.au> wrote:
> Thanks Michael
>
> It was mentioned in the list the use of a script that monitors the connection
> and changes the default gateway if it goes down.
> As this is exactly what I want to do, I would love to hear from James or
> others how well this works. Would you be happy to share the script?
>
> Thanks to all.
>
> Regards
> Michael Knill
>
>
>
>
> On 20/10/2013, at 8:34 PM, Michael Keuter <li...@mksolutions.info> wrote:
>
> >
> > Am 20.10.2013 um 00:56 schrieb Michael Knill
> > <michael.kn...@ipcsolutions.com.au>:
> >
> >> To the group
> >>
> >> I have a customer who wants a redundant broadband connection and I was
> >> wondering if anyone has a working failover solution before I start
> >> developing one.
> >> I realise that Astlinux has a failover solution but I dont think it will
> >> be intuitive enough for automatic failover e.g. no PPP interfaces and
> >> relies on physical interface status?
> >> An Asterisk failover solution along with redundant broadband connections
> >> is also something that I have considered.
> >>
> >> I think with this sort of feature, Astlinux could be provided to larger
> >> customers where single points of failure is an issue.
> >>
> >> Regards
> >> Michael Knill
> >
> > Hi Michael,
> >
> > we had this topic already quite a while ago on both lists.
> >
> > Here for reference:
> > http://www.mail-archive.com/astlinux-users@lists.sourceforge.net/msg04561.html
> > http://sourceforge.net/mailarchive/forum.php?thread_name=51FDED75-9854-4B98-97F3-E239F1197221%40lonnie.abelbeck.com&forum_name=astlinux-devel
> >
> > Michael
> >
> > http://www.mksolutions.info
> >
> >
> >
> >
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------------------------------------------------------------------------------
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Free Intel webinars can help you accelerate application performance.
Explore tips for MPI, OpenMP, advanced profiling, and more. Get the most from
the latest Intel processors and coprocessors. See abstracts and register >
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