[SR-Users] Overload Control

[Kaplan, Michael A]

Thanks, this is very much what I was looking for. It appears the ratelimit/piplimit modules offer some degree of overload control through queue drops and invite rejections based on a server's local cpu load. Some of the other overload control mechanisms described in the RFC (e.g. window based control and loss based control) would also be of interest to me. Not sure if public implementations exist or if they are restricted to research implementations. Thanks for the pointer to ratelimit nevertheless.


-----Original Message-----
From: sr-users-bounces at lists.sip-router.org [mailto:sr-users-bounces at lists.sip-router.org] On Behalf Of Alex Balashov
Sent: Wednesday, July 25, 2012 2:39 PM
To: sr-users at lists.sip-router.org
Subject: Re: [SR-Users] Overload Control

But also, check out this module:

http://www.kamailio.org/docs/modules/3.3.x/modules/pipelimit.html

On 07/25/2012 02:33 PM, Kaplan, Michael A wrote:

> Sure - I'm referring to mechanisms for the server to advertise to upstream neighbors to reduce request rates. This could include methods that appear in RFC 6357 (e.g. rate-limits, window-based control, loss-rate enforcement). I suppose the try-again-after method would be of interest as well.
>
>
> -----Original Message-----
> From: sr-users-bounces at lists.sip-router.org 
> [mailto:sr-users-bounces at lists.sip-router.org] On Behalf Of Alex 
> Balashov
> Sent: Wednesday, July 25, 2012 2:29 PM
> To: sr-users at lists.sip-router.org
> Subject: Re: [SR-Users] Overload Control
>
> Can you elaborate as to what you mean by that term, "overload control"?
>
> On 07/25/2012 01:49 PM, Kaplan, Michael A wrote:
>
>> Folks,
>>
>> I'm trying to figure out if either Kamailio or OpenSIPs provides the 
>> various overload control algorithms recommended in the IETF or 
>> elsewhere. I haven't found documentation to this effect. Has anyone 
>> looked into this or used such techniques?
>>
>> Thanks,
>>
>> Mike
>>
>>
>>
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>>
>
>
> --
> Alex Balashov - Principal
> Evariste Systems LLC
> 235 E Ponce de Leon Ave
> Suite 106
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>
> _______________________________________________
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--
Alex Balashov - Principal
Evariste Systems LLC
235 E Ponce de Leon Ave
Suite 106
Decatur, GA 30030
Tel: +1-678-954-0670
Fax: +1-404-961-1892
Web: http://www.evaristesys.com/, http://www.alexbalashov.com/

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