[Nfd-dev] [Operators] broadcast storm of malformed packets

[Dehart, John]

Right. I’m just trying to isolate it so the Testbed can survive. Its killing some nodes.
John

> On Sep 5, 2019, at 11:26 AM, Junxiao Shi <shijunxiao at email.arizona.edu> wrote:
> 
> Hi NDNOPS/John
> 
> I injected the latest one when I wrote the bug report. I don't know where does the earlier packets come from.
> It doesn't matter which app is transmitting. Forwarder must not malfunction regardless of traffic.
> 
> Yours, Junxiao
> 
> On Thu, Sep 5, 2019, 11:22 Dehart, John <jdd at wustl.edu <mailto:jdd at wustl.edu>> wrote:
> All:
> 
> Anyone have any ideas where this might be coming from?
> 
> John
> 
>> On Sep 5, 2019, at 5:15 AM, Junxiao Shi <shijunxiao at email.arizona.edu <mailto:shijunxiao at email.arizona.edu>> wrote:
>> 
>> Dear folks
>> 
>> I've reported a bug here:
>> https://redmine.named-data.net/issues/4998 <https://redmine.named-data.net/issues/4998>
>> 
>> Yours, Junxiao
>> 
>> On Wed, Sep 4, 2019, 22:49 Junxiao Shi <shijunxiao at email.arizona.edu <mailto:shijunxiao at email.arizona.edu>> wrote:
>> Dear folks
>> 
>> It seems that there has been a broadcast storm going around the testbed.
>> I first noticed this yesterday, and it's still going on as of an hour ago.
>> 
>> I'm attaching a packet sample captured on my server.
>> The packets contain malformed Selectors, such as: (note that you can't have MetaInfo inside Selectors)
>> <image.png>
>> 
>> I ran a program to respond to these packets, and the traffic seems to have disappeared.
>> I suspect there are some sort of software bugs, causing the traffic to loop around instead of getting dropped.
>> 
>> Yours, Junxiao
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> 

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