Re: [asterisk-users] Multiple IAX2 Trunks Load balancing

2013-12-15 Thread Brian LaVallee

Are you looking for something like this?

Note: This will continuously go between the two trunks until the caller 
hangs up, can be fixed by adding loop counter.


;
; extensions.conf
;
[LOADBALANCE]
exten = _X.,1,NoOp(Connect to least used trunk)
; - show active count
exten = _X.,n,NoOp(Calls: 
${GROUP_COUNT(TRUNK01CNT)}/${GROUP_COUNT(TRUNK02CNT)} of 
${MATH(${GROUP_COUNT(TRUNK01CNT)}+${GROUP_COUNT(TRUNK02CNT)},int)})

; - goto least used trunk
exten = _X.,n,GotoIf($[${GROUP_COUNT(TRUNK01CNT)}  
${GROUP_COUNT(TRUNK02CNT)}]?TRUNK02,${EXTEN},1:TRUNK01,${EXTEN},1)

;
;
[TRUNK01]
exten = _X.,1,NoOp(Using Trunk 01)
; - set trunk used counter
exten = _X.,n,Set(GROUP()=TRUNK01CNT)
; - dial trunk
exten = _X.,n,Dial(IAX/T01/${EXTEN})
; - add loop counter to stop infinite loop
exten = _X.,n,NoOp(Use next TRUNK02is congestion or chanunavial)
; - next trunk if CONGESTION
exten = _X.,n,GotoIf($[${DIALSTATUS}=CONGESTION]?TRUNK02,${EXTEN},1)
; - next trunk if CHANUNAVAIL
exten = _X.,n,GotoIf($[${DIALSTATUS}=CHANUNAVAIL]?TRUNK02,${EXTEN},1)
exten = _X.,n,Hangup()
;
;
[TRUNK02]
; - same as above
exten = _X.,1,NoOp(Using Trunk 02)
exten = _X.,n,Set(GROUP()=TRUNK02CNT)
exten = _X.,n,Dial(IAX/T02/${EXTEN})
exten = _X.,n,NoOp(Use next TRUNK01is congestion or chanunavial)
exten = _X.,n,GotoIf($[${DIALSTATUS}=CONGESTION]?TRUNK01,${EXTEN},1)
exten = _X.,n,GotoIf($[${DIALSTATUS}=CHANUNAVAIL]?TRUNK01,${EXTEN},1)
exten = _X.,n,Hangup()
;
; - end

On 12/14/13, 4:41 PM, Muhammad Usman wrote:

Friends let me define the scenario please;
Scenario:
2 asterisk servers (A  B) are connected using 05 IAX2 trunks between 
them. The machine A is running asterisk  Openvpn server in TUN mode 
(5 instances with difference IP addresses for clients). The machine B 
is running asterisk with 05 OpenVPN clients using 05 bandwidths. The 
IAX trunks are established between each pair of P-2-P ip address of 
machine A (The OPENVPN Server)  machine B (The Openvpn client).

Requirement:
Required dial plan configuration at machine A for incoming calls from 
VoIP Switch/VOS which can forward the calls to IAX2 trunks in round 
robin fashion like Load Balancing. If any trunk goes down it starts 
forwarding the traffic to other available trunks  when it gets UP the 
dialplan should perform as desired. Like L.B  Fail-over scenarios.



On Fri, Dec 13, 2013 at 8:52 PM, Hans Witvliet aster...@a-domani.nl 
mailto:aster...@a-domani.nl wrote:


On Fri, 2013-12-13 at 06:20 -0600, Don Kelly wrote:
 On Fri, 2013-12-13 at 12:48 +0500, Muhammad Usman wrote:
  Hi - I have 2 Asterisk servers connected using 05 IAX2 trunks.
I want
  to load balance incoming calls over IAX2 trunks. If any trunk goes
  down the calls traffic will be shared with other available trunks.
  When it gets Up the script is supposed to perform as desired
i.e in
  load balance mode.

  Thanks in advance.
 

 Hans said:


 Perhaps it is possible to do the L.B. at the O.S. or network
level, and let
 all trunks appear to asterisk to one single trunk.

 Don asks:

 What's the value of load balancing multiple IAX trunks between
the same
 system pair? What resources are being balanced?

++

Perhaps the O.P. can explain about his intentions...

In some situations it makes sense though:
If you have to connect two servers, and use different kind of
infrastructure / multiple providers...

hw


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Re: [asterisk-users] Multiple IAX2 Trunks Load balancing

2013-12-13 Thread Steven Howes
On 13 Dec 2013, at 07:48, Muhammad Usman replyus...@gmail.com wrote:
 Hi - I have 2 Asterisk servers connected using 05 IAX2 trunks. I want to load 
 balance incoming calls over IAX2 trunks. If any trunk goes down the calls 
 traffic will be shared with other available trunks. When it gets Up the 
 script is supposed to perform as desired i.e in load balance mode.

Sounds wonderful.

S
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Re: [asterisk-users] Multiple IAX2 Trunks Load balancing

2013-12-13 Thread Muhammad Usman
yeah -- searching how to perform this magic ...


On Fri, Dec 13, 2013 at 2:29 PM, Steven Howes steve-li...@geekinter.netwrote:

 On 13 Dec 2013, at 07:48, Muhammad Usman replyus...@gmail.com wrote:
  Hi - I have 2 Asterisk servers connected using 05 IAX2 trunks. I want to
 load balance incoming calls over IAX2 trunks. If any trunk goes down the
 calls traffic will be shared with other available trunks. When it gets Up
 the script is supposed to perform as desired i.e in load balance mode.

 Sounds wonderful.

 S
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Re: [asterisk-users] Multiple IAX2 Trunks Load balancing

2013-12-13 Thread Hans Witv;iet
On Fri, 2013-12-13 at 12:48 +0500, Muhammad Usman wrote:
 Hi - I have 2 Asterisk servers connected using 05 IAX2 trunks. I want
 to load balance incoming calls over IAX2 trunks. If any trunk goes
 down the calls traffic will be shared with other available trunks.
 When it gets Up the script is supposed to perform as desired i.e in
 load balance mode.

 Thanks in advance.
 
Hi,

Generally, incoming traffic (http/mail/sip/vpn/etc) can easily spread
with the random functions with iptables. 
Perhaps also have a look at:
http://www.linuxvirtualserver.org/VS-NAT.html 


But i feel that might not work in this case, if all your
trunk-connections are already up-and-running.

If so, you might contemplate an alternative approach.
It sounds that you want to do the load balancing trick upon the
application layer (eg. within asterisk)

Perhaps it is possible to do the L.B. at the O.S. or network level, and
let all trunks appear to asterisk to one single trunk.


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Re: [asterisk-users] Multiple IAX2 Trunks Load balancing

2013-12-13 Thread Don Kelly
On Fri, 2013-12-13 at 12:48 +0500, Muhammad Usman wrote:
 Hi - I have 2 Asterisk servers connected using 05 IAX2 trunks. I want 
 to load balance incoming calls over IAX2 trunks. If any trunk goes 
 down the calls traffic will be shared with other available trunks.
 When it gets Up the script is supposed to perform as desired i.e in 
 load balance mode.

 Thanks in advance.
 

Hans said:

Hi,

Generally, incoming traffic (http/mail/sip/vpn/etc) can easily spread with
the random functions with iptables. 
Perhaps also have a look at:
http://www.linuxvirtualserver.org/VS-NAT.html 

But i feel that might not work in this case, if all your trunk-connections
are already up-and-running.

If so, you might contemplate an alternative approach.
It sounds that you want to do the load balancing trick upon the application
layer (eg. within asterisk)

Perhaps it is possible to do the L.B. at the O.S. or network level, and let
all trunks appear to asterisk to one single trunk.

Don asks:

What's the value of load balancing multiple IAX trunks between the same
system pair? What resources are being balanced?

  --Don



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Re: [asterisk-users] Multiple IAX2 Trunks Load balancing

2013-12-13 Thread Steve Edwards

On Fri, 13 Dec 2013, Don Kelly wrote:


What's the value of load balancing multiple IAX trunks between the same
system pair? What resources are being balanced?


1) It's been said (but I've never experienced it) that IAX performs poorly 
at high channel levels. Something about all those packets being handled 
with a single socket (bound to port 4569). Maybe the OP is trying to 
distribute the load over a handful of sockets.


2) Maybe the OP is trying to distribute the load over different physical 
media.


3) Maybe the OP is just trying to develop a load balancing methodology.

Multiple trunks between the same pair of hosts does seem odd.

--
Thanks in advance,
-
Steve Edwards   sedwa...@sedwards.com  Voice: +1-760-468-3867 PST
Newline  Fax: +1-760-731-3000

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Re: [asterisk-users] Multiple IAX2 Trunks Load balancing

2013-12-13 Thread Hans Witvliet
On Fri, 2013-12-13 at 06:20 -0600, Don Kelly wrote:
 On Fri, 2013-12-13 at 12:48 +0500, Muhammad Usman wrote:
  Hi - I have 2 Asterisk servers connected using 05 IAX2 trunks. I want 
  to load balance incoming calls over IAX2 trunks. If any trunk goes 
  down the calls traffic will be shared with other available trunks.
  When it gets Up the script is supposed to perform as desired i.e in 
  load balance mode.
 
  Thanks in advance.
  
 
 Hans said:

 
 Perhaps it is possible to do the L.B. at the O.S. or network level, and let
 all trunks appear to asterisk to one single trunk.
 
 Don asks:
 
 What's the value of load balancing multiple IAX trunks between the same
 system pair? What resources are being balanced?
 
++

Perhaps the O.P. can explain about his intentions...

In some situations it makes sense though:
If you have to connect two servers, and use different kind of
infrastructure / multiple providers...

hw


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Re: [asterisk-users] Multiple IAX2 Trunks Load balancing

2013-12-13 Thread Muhammad Usman
Friends let me define the scenario please;
Scenario:
2 asterisk servers (A  B) are connected using 05 IAX2 trunks between them.
The machine A is running asterisk  Openvpn server in TUN mode (5 instances
with difference IP addresses for clients). The machine B is running
asterisk with 05 OpenVPN clients using 05 bandwidths. The IAX trunks are
established between each pair of P-2-P ip address of machine A (The OPENVPN
Server)  machine B (The Openvpn client).
Requirement:
Required dial plan configuration at machine A for incoming calls from VoIP
Switch/VOS which can forward the calls to IAX2 trunks in round robin
fashion like Load Balancing. If any trunk goes down it starts forwarding
the traffic to other available trunks  when it gets UP the dialplan should
perform as desired. Like L.B  Fail-over scenarios.


On Fri, Dec 13, 2013 at 8:52 PM, Hans Witvliet aster...@a-domani.nl wrote:

 On Fri, 2013-12-13 at 06:20 -0600, Don Kelly wrote:
  On Fri, 2013-12-13 at 12:48 +0500, Muhammad Usman wrote:
   Hi - I have 2 Asterisk servers connected using 05 IAX2 trunks. I want
   to load balance incoming calls over IAX2 trunks. If any trunk goes
   down the calls traffic will be shared with other available trunks.
   When it gets Up the script is supposed to perform as desired i.e in
   load balance mode.
 
   Thanks in advance.
  
 
  Hans said:

 
  Perhaps it is possible to do the L.B. at the O.S. or network level, and
 let
  all trunks appear to asterisk to one single trunk.
 
  Don asks:
 
  What's the value of load balancing multiple IAX trunks between the same
  system pair? What resources are being balanced?
 
 ++

 Perhaps the O.P. can explain about his intentions...

 In some situations it makes sense though:
 If you have to connect two servers, and use different kind of
 infrastructure / multiple providers...

 hw


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(Muhammad υѕмαη )
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