asterisk users - May 2009 - Auto-congesting call due to slow response

Hello,

I'm running several asterisks in a carrier environment. The asterisks do
mainly gateway business between E1 cards and IAX with some routing
logic.

On one key server I see issues of "Auto-congesting call due to slow
response" coming every number of calls. The IAX peer is in the same
subnet, the servers are not really loaded.

Versions in use are 1.2.2 and 1.4.23-rc3, with rsa key authentication in
use

any ideas?

kind regards
-- 
Alexander Topolanek

I'd look at the packet delay.  Log some of the packets, see how long until
you get a response from the remote host.  If the delay is really long, then
that's the issue (which by the response I assume that's exactly
what's
happening).  Lower the load on the system and see if the delay improves.

Or you can increase the timeout if you really wanted.

channels/chan_iax2.c

With debugging on, it seems that this data is available.  But it's the same
timeout as a Peer would be.  And trust me, that timeout is huge.

So that makes me think of another issue.  I know with my VoIP provider, they
told me not to trust the PEER POKE responses because I kept seeing my
provider connect, disconnect, connect, disconnect.  They had me turn off the
qualification.  (This is all SIP so I'm not sure how it translates to IAX).
Might not want to waste the packets to send data to a server that is always
available.

If you don't get any help, you can try opening it as a bug on Digium's
Bug
Tracker but I assume the issue isn't a bug but just an overloaded system
with a slow response time.

Nicholas Blasgen
Partner / Network Operations
Refractive Dialer LLC
415.692-5277 (w)
408.497.9796 (c)

Please update your contact records with my new work number.


On Wed, May 27, 2009 at 10:52 AM, Alexander Topolanek <atopo at ocv.org>
wrote:
> Hello,
>
> I'm running several asterisks in a carrier environment. The asterisks
do
> mainly gateway business between E1 cards and IAX with some routing
> logic.
>
> On one key server I see issues of "Auto-congesting call due to slow
> response" coming every number of calls. The IAX peer is in the same
> subnet, the servers are not really loaded.
>
> Versions in use are 1.2.2 and 1.4.23-rc3, with rsa key authentication in
> use
>
> any ideas?
>
> kind regards
> --
> Alexander Topolanek
>
>
>
> _______________________________________________
> -- Bandwidth and Colocation Provided by http://www.api-digital.com --
>
> asterisk-users mailing list
> To UNSUBSCRIBE or update options visit:
>   http://lists.digium.com/mailman/listinfo/asterisk-users
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL:
http://lists.digium.com/pipermail/asterisk-users/attachments/20090527/07d0541a/attachment.htm