[asterisk-dev] IAX2 very CPU hungry

[Derek Smithies]

On Fri, 24 Nov 2006, Tim Panton wrote:
> 
> IAX's repeated registrations every 30 seconds are know to be expensive.
> Current thinking is to re-register much less often, but to use ping packets
> to 'qualify' the link, which is more like SIP's standard method.


Why are the registrations expensive ?
 Does that suggest a bug in asterisk in handling registrations?
 Can this code be made more efficient?

Actually - there is a denial of service attack. I will adjust the iax2 to 
send a registration every second, not every 30 seconds.
 A couple of calls doing that will make the server quite busy.


Derek.

-- 
Derek Smithies Ph.D.
IndraNet Technologies Ltd.
Email: derek at indranet.co.nz
ph +64 3 365 6485
Web: http://www.indranet-technologies.com/