[SIPForum-discussion] SIP servers scalability and redundancy

[Manpreet Singh]

Commercial load balancers would be good solution but they need to be little
bit protocol savvy and keep some call state to forward SIP messages to the
right proxy/app servers behind it. I would say any layer 2 load balancer
which can either keep some call cache to mantain a flow or talk to an
external database that is keeping real time call state, will be able to give
good redundancy/load share. I know radware does something where is does
layer 2 load share and also keeps some state based on call-ID.
 
ofcourse, one would need stateful failover on the proxies itself in case
them failing.

  _____  

From: ??? [mailto:jason at polypix.com] 
Sent: Thursday, January 25, 2007 8:48 PM
To: discussion at sipforum.org
Subject: [SIPForum-discussion] SIP servers scalability and redundancy


dear folks,
 
I have 4 sip proxy servers, 2 sip app servers, 2 sip ms servers and 2 sip
presence/im servers to deploy redundancy based sip service network.
 
What scenario should I take to achieve redundancy feature ?
Some guy told me to use commercial load balancer like CoyotePoint in front
of each servers.
Please give me your comment.
 
thanks a lot,
 
 
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