[Asterisk-Users] Re: load balancing 20 asterisk servers

[Jon Bebeau]

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" <mmusone at gmail.com>
To: "Asterisk Users Mailing List - Non-Commercial Discussion" 
<asterisk-users at lists.digium.com>
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 <asterisk at puzzled.xs4all.nl> 
> 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
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