[AusNOG] Broadcast Storm - IX NextDC S1

[Abhi Gudidevuni]

Hi Ryan,

The Sydney Mega IX experienced a customer initiated broadcast storm. We are
investigating mitigation actions. If you have not already, please lodge a
support request and the team will provide a report.

Regards,

-- 

*Abhi **Gudidevuni*
*Head of Customer & Network Services*

On Wed, Sep 23, 2020 at 4:37 PM Karl Hardisty <karl at mothership.co.nz> wrote:

> Hi Ryan,
>
> You’re a little late to the party; there was an ARP storm on Mega-IX
> Sydney yesterday.
>
> Much hilarity ensued. Particularly if peers had default Juniper ARP
> policers.
>
> TL:DR it wasn’t just you. It was most of Au and NZ (sucking at the teat of
> MegaIX in Sydney).
>
> Kind regards,
>
> Karl
>
> *lE karl at mothership.co.nz <karl at mothership.co.nz> lW mothership.co.nz
> <http://mothership.co.nz/>  l**A* PO Box 99814, Newmarket  *lM *021 999
> 990 *l**P* 09 974 3171
>
>
>
>
>
> On 23/09/2020, at 6:32 PM, Ryan van Klaveren <
> ryan.vanklaveren at comvergence.com.au> wrote:
>
> Hey all,
>
> Did anyone else experience any irregularities yesterday (22 Sept)
> between 10:39am - 11:50am ? (I know that sounds a bit vague) - but this is
> what we experienced during this window:
>
> * Our nameservers failing to do resolution
> * Sydney transit routers had BGP flaps to IX NSW peers
> * Sydney ASR router generated 143 logs of: PUNT_INJECT-5-DROP_PUNT_CAUSE:
> punt cause policer drop packet casue 7 (ARP request or response)
>
> Spoke to IX, who said:
> "Yep we did, yesterday another IX had an outage (I believe a broadcast
> storm occurred) around the timestamps in your logs, a number of our members
> that had remote ends also connected to the other IX were affected by that
> outage and that is likely the reason for their session to flap towards us
> "
>
>
> Just trying to see if anyone else experienced it, and better yet have any
> more details as to what may have caused it?
>
>
>
> Kind regards,
> Ryan van Klaveren
>
> Main: 1300 550 125
> Fax: 1300 550 121
>
>
>        www.comvergence.com.au
> Level 2, 38-40 Garden Street, South Yarra, VIC 3141
>
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