[SIPForum-discussion] LoadBalancer using 30x SIP Messages

Ashoke Kumar Ghosh ashoke.k.ghosh at gmail.com
Sun Jan 31 05:23:04 UTC 2010

That means it is working using OPTIONS message. Similar mechanism we also have in place for load distribution to SCP applications.


I am interested to know the load distribution mechanism using 3xx.




Ashoke Ghosh


From: Chittaranjan Panda [mailto:cpanda at transcomus.com] 
Sent: Friday, January 29, 2010 10:40 PM
To: ashoke.k.ghosh at gmail.com
Cc: 'Sukhbir'; discussion at sipforum.org
Subject: Re: [SIPForum-discussion] LoadBalancer using 30x SIP Messages



In our deployment :

The load balancer has one interface for public domain. And 4 private interfaces is which is communicating 4 of our SCP platform.

Every time the private interface does option ping to check health of the SCP server. And send request(INVITE) on the basis of Round Rabin.

If for the OPTION balancer receives a negative response then it make it out of service  this SCP node. Once it receives 200 Ok then it make it in service.


Ashoke Kumar Ghosh wrote: 

Can you pl elaborate how the SIP load balancer is working in your case and its purpose.


I have some problem with one application server. This will help me address the current issue of load handling at the application server.



From: discussion-bounces at sipforum.org [mailto:discussion-bounces at sipforum.org] On Behalf Of Chittaranjan Panda
Sent: Thursday, January 28, 2010 11:51 PM
To: Sukhbir
Cc: discussion at sipforum.org
Subject: Re: [SIPForum-discussion] LoadBalancer using 30x SIP Messages



SIP load balancer will work for 3xx response. In our deployment we are using SIP load balancer (Foundry SIP load balancer) for our SIP based SCP.

Where SCP send 302/304/300 through load balancer. It is working perfect.


Sukhbir wrote: 

Hi All,

I need to know that is this good idea to develop SIP Load Balancer Using 3xx messages (like 302 Moved Temporray)?
I have read somewhere that this type of Load Balancer will not work in certain situation. But there was no information regarding situation under it which it will not work.
Please share with me if anyone have information regarding this.

Thanks in Advance

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