[asterisk-users] SIP OPTIONS "storm"?

Tim Nelson tnelson at rockbochs.com
Tue Feb 18 08:42:21 CST 2014

----- Original Message -----
> On 13 Feb 2014, at 18:10, Tim Nelson <tnelson at rockbochs.com> wrote:
> > I recently experienced an odd situation. I have an Asterisk 11.5.0
> > system (Box A) with a SIP peering to another Asterisk
> > system (Box B). At some point, Box A started sending over 65Mbps
> > of SIP OPTIONS packets to Box A. I do have qualify=yes for the
> > peer on both sides, and the qualifyfreq is not set (aka default of
> > 60secs).
> Just because Box B was receiving 65MBps doesn’t mean box A was
> sending them. I suspect it’s probably the same one repeated, due to
> some kind of network problem. Do you have a pcap so you can look for
> the ID in the packets to see if they are the same? Would be good if
> you can prove A sent them too (traffic stats from SNMP monitoring or
> something).

Right, but a packet capture shows the source to be box A, and the destination to be box B. NMS reports from the same time period confirm the traffic flows. I'm not guessing or stabbing in the dark, I did my homework before posting. :)

Checking the IDs across ~25 packets, all have different SIP IDs.

Any thoughts?


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