(RADIATOR) redundant radius accounting servers

[Hugh Irvine]

Hello Martin -

You can easily build this sort of thing with a Radiator host that 
proxies to multiple destinations.

I am also currently working on a project in which we are going to 
experiment with sending radius accounting requests to a multicast 
address so we can easily add redundant servers in a manner similar to 
what you describe. I should have some results in the coming weeks and I 
will post a summary to the list describing what we come up with.

On this same project we are also using Alteon load balancers which may 
be capable of duplicating requests. I have not looked at this in detail 
yet. See http://www.nortelnetworks.com/products/family/alteon.html for 
more details.

There are a number of companies making hardware load balancers and a 
quick Google search for "radius load balancer" brings up lots of hits.

BTW - you should pressure your VoIP gateway supplier to fix their 
software.

regards

Hugh


On 13 Aug 2004, at 21:33, Martin Koenig wrote:

> Hello,
>
> I'm looking for a solution to setup a redundant radius accounting 
> server array.
>
> Scenario:
>
> We have several dump VoIP gateways, and they all generate radius 
> accounting-requests. They only support one radius accounting server, 
> so redundancy cannot be generated at the gateway itself. We would like 
> to misuse a load-balancer to simply double the accounting requests and 
> send them to multiple servers. Alternatively we would need to setup a 
> high availability radius proxy and double the requests there?
>
> Has anyone got experience with this kind of setup? Real redundancy 
> cannot be reached, that is obvious due to the limitation of the 
> gateways, but the single point of failure has to be something like 
> 99.999% uptime per year, thus a load balancer would be a nice thing. 
> Is such kind of hareware available somewhere?
>
> Regards,
> Martin
>
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NB: have you included a copy of your configuration file (no secrets),
together with a trace 4 debug showing what is happening?

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