Hi,
I was asked about how * could provide redundancy (on the actual PBX
Server portion, not the incoming lines), and my immediate thoughts were:
Incoming
=======Basically somehow I'd split the incoming T1 line into two parallel
lines
and connect them to two * servers.
-----> * Server 1
|
--- T1 ---
|
-----> * Server 2
Internal
=======I've got a couple of analog phones that need to be hooked up to *, so
somehow I'd split each analog line into two parallel lines feeding into
the two * servers.
* Server 1 <-----
|
--- Analog phones
|
* Server 2 <-----
------------------
Server #2 would remain in standby mode, or running some sort of
heartbeat detect mechanism to determine if server #1 was still alive.
When #2 detects that #1 is down, #2 would start its * process.
Both servers would be identically configured in terms of
extensions.conf, sip.conf etc.
My concern is not whether I can create the two * servers -- but rather
whether this setup would work based on the splitting and creation of
parallel T1 and analog lines.
Does anyone have further insight?
Cheers,
Flynn
As ussual, check the Wiki. http://www.voip-info.org/wiki-Failover+switches On Wed, 2004-08-25 at 03:46, el Flynn wrote:> Hi, > > I was asked about how * could provide redundancy (on the actual PBX > Server portion, not the incoming lines), and my immediate thoughts were: > > Incoming > =======> Basically somehow I'd split the incoming T1 line into two parallel lines > and connect them to two * servers. > > -----> * Server 1 > | > --- T1 --- > | > -----> * Server 2 > > Internal > =======> I've got a couple of analog phones that need to be hooked up to *, so > somehow I'd split each analog line into two parallel lines feeding into > the two * servers. > > * Server 1 <----- > | > --- Analog phones > | > * Server 2 <----- > > > ------------------ > > Server #2 would remain in standby mode, or running some sort of > heartbeat detect mechanism to determine if server #1 was still alive. > When #2 detects that #1 is down, #2 would start its * process. > > Both servers would be identically configured in terms of > extensions.conf, sip.conf etc. > > My concern is not whether I can create the two * servers -- but rather > whether this setup would work based on the splitting and creation of > parallel T1 and analog lines. > > Does anyone have further insight?-- Steven Critchfield <critch@basesys.com>
el Flynn wrote:> Basically somehow I'd split the incoming T1 line into two parallel lines > and connect them to two * servers. >I found some hardware that allows you to do this, instead of hacking the T1 cable (which may lead to an impedance mismatch, from what I've been told). They're made by GL communications and I've put it up on the Wiki at http://www.voip-info.org/tiki-index.php?page=Failover+switches They basically make T1/E1 multiport repeaters. The single version provides ten identical outputs from a single T1/E1 input. The dual version provides four outputs for each of two inputs. So you could use this to connect one or two T1/E1 to multiple Asterisk servers (where one server would of course not be running Asterisk until the other server is dead) Just wanted this to get on the archives in case anyone else gets into the same situation as I did. Cheers, Flynn