[Asterisk-Users] Clustering

[Gabriel Afana]

Doug,
    Thanks for this info.  Can I bug you for one last question?

    From what I can find online, OSPF seems to be a technology or method,
not necessarily a program.  What are you using to perform OSPF?

- Gabe

----- Original Message ----- 
From: "Douglas Garstang" <dgarstang at oneeighty.com>
To: "Asterisk Users Mailing List - Non-Commercial Discussion"
<asterisk-users at lists.digium.com>
Sent: Saturday, March 11, 2006 6:38 PM
Subject: RE: [Asterisk-Users] Clustering


> Gabriel. We are using OSPF on our asterisk box. When an interface fails,
OSPF switches the default route over to the other interface. :) Fortunately
Polycom phones are smart enough to wait for the RTP stream to be
re-established.
>
> As for OpenSER vs SER... I'm not sure. It really shouldn't make much
difference which is used.
>
>
> -----Original Message----- 
> From: Gabriel Afana [mailto:asterisk at gafana.com]
> Sent: Sat 3/11/2006 6:26 PM
> To: Asterisk Users Mailing List - Non-Commercial Discussion
> Cc:
> Subject: Re: [Asterisk-Users] Clustering
>
>
>
> Doug,
>     How did get the RTP stream to fail over in progress?
>
>     Also, you mentioned your using OpenSER.  Why did you choose this over
> the standard SER?
>
> - Gabe
>
>
> ----- Original Message -----
> From: "Douglas Garstang" <dgarstang at oneeighty.com>
> To: "Asterisk Users Mailing List - Non-Commercial Discussion"
> <asterisk-users at lists.digium.com>; "Asterisk Users Mailing
> List -Non-Commercial Discussion" <asterisk-users at lists.digium.com>
> Sent: Friday, March 10, 2006 10:49 PM
> Subject: RE: [Asterisk-Users] Clustering
>
>
> > We're doing this. Our Polycom phones point to a domain name that support
> SRV records which gives us a roughly even distribution of calls. We have
> OpenSER systems sitting in front of the phones. Each OpenSER system is
> configured with different primary/secondary/tertiary Asterisk boxes. When
a
> phone registers with SER, it 'copies' the registration down to all the
> Asterisk systems.
> >
> > However, now that I find we allegedly could have used regexten on
Asterisk
> to replicate the registrations (yet to see docs on how this works), that
$8k
> we spent on systems for OpenSER suddenly seems like money not quite so
well
> spent.
> >
> > Calls to the PSTN are routed from Asterisk back to the OpenSER proxies
> where it sends it to the PSTN gateway.
> >
> > Eventhough it all seems to work quite well, and using OSPF we have been
> able to actually fail an interface on a single OpenSER or Asterisk box and
> fail over an RTP stream (only a few seconds of dead air), due to the
> horrible Asterisk documentation, our main challenge has been in
replicating
> phone registrations between the Asterisk systems.
> >
> > It would have been great if the Asterisk product was mature enough to
> support Realtime SIP for storing registrations from multiple Asterisk
boxes.
> On the surface you'd think it's possible, but every one has a different
> opinion about whether it's technically shown to work.
> >
> > If your going to try and set up a HA Asterisk solution be prepared for a
> really tough time.
> >
> > Doug.
> >
> >
> >
> >
> >
> >
> > -----Original Message-----
> > From: Wai Wu [mailto:wwu at Calltrol.com]
> > Sent: Fri 3/10/2006 9:48 PM
> > To: Asterisk Users Mailing List - Non-Commercial Discussion
> > Cc:
> > Subject: RE: [Asterisk-Users] Clustering
> >
> >
> > If all the sub-servers register themselves to the frontend load balancer
> and support reinvite, the load balancer can decide which server to send
the
> call to based on the CPU utilizations of the call processing servers. I'm
> assuming all calls are voip calls here.
> >
> > -----Original Message-----
> > From: asterisk-users-bounces at lists.digium.com
> [mailto:asterisk-users-bounces at lists.digium.com]On Behalf Of Ron McCarthy
> > Sent: Friday, March 10, 2006 2:22 PM
> > To: Asterisk Users Mailing List - Non-Commercial Discussion
> > Subject: [Asterisk-Users] Clustering
> >
> >
> > Hello All,
> >
> > Ive been doing more and more research on trying to setup a cluster/load
> balancer for Asterisk. All the Asterisk boxes would be using a config that
> is the same between them all (via a DB), but we want one location to point
> the phones to, and from there that machine/device will send it to a
Asterisk
> server so the call can be processed. I know you cant balance the whole
call,
> ie: once the call is started the RTP stream has to go to the same server,
> but a new call could go to a different server if perhaps the 1st server
was
> unreachable.
> >
> > Has anyone tried this, or got this to work? Ive been looking at using a
> Juniper Session Border Controller, but not sure if thats gonna do the
trick,
> and then we also have SER..
> >
> > Any comments would be great!
> >
> > Thanks
> > Ron
> >
> >
> >
>
>
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