Mark,
I've been following this thread with some interest as we're gearing up for load/failover processing. Can you elaborate on the garp and IP takeover process, like what software packages do that in Linux or point me to a site for more info?
Thanks,
Jon
----- Original Message ----- From: "Mark Musone" <[EMAIL PROTECTED]>
To: "Asterisk Users Mailing List - Non-Commercial Discussion" <[email protected]>
Sent: Thursday, February 03, 2005 10:36 AM
Subject: Re: [Asterisk-Users] Re: load balancing 20 asterisk servers
Don't confuse load balacing with failover. They are quite different beasts and are handled differently. (sure, they can be "combined" into one solution, but they are still effectively very different)
Round Robin DNS based load balancing is still a viable load balancing solution (read some of the early Netscape white papers compaing round robin DNS to "intelligent" load balancers, the results were almost identical if not BETTER with round robin DNS.)
As far as the failover part, all thats needed is a simple IP Address takeover. nowadays, ip address takeovers is VERY simple. change an ip address, possibly add a proxy arp, and clear the arp cache (or send a garp packet)
I'm not necessarially saying this is or should be the solution for this specific problem, i havent really spent any time thinking about SIP. i'm just suggesting a possible easy solution, what people are saying, using SER to redirect to an asterisk server (thats the load balancing piece), and then simple IP Takeover for failover (why buy an expensive cisco box for doing something as easy as ARP)
-Mark
On Thu, 03 Feb 2005 13:38:49 +0100, Patrick <[EMAIL PROTECTED]> wrote:Rich Adamson wrote: [snip] > I'm not aware of any balancers that > can do that today.
Afaik Cisco is working on SIP aware loadbalancer functionality. Don't
know what the status is and since it's Cisco I'm sure it will cost a bundle.
Regards, Patrick _______________________________________________ Asterisk-Users mailing list [email protected] http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
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