[AusNOG] Outage that costs Millions

[Andrew Fort]

On Wed, Jun 30, 2010 at 11:46 AM, Lincoln Dale <ltd at cisco.com> wrote:
> On 30/06/2010, at 10:43 AM, Daniel Hood wrote:
>> The issue the outage was facing was a Spanning Tree Loop that knocked over all of the
>
> it is the _absence_ of Spanning Tree that means that a network cannot _recover_ from someone causing a loop.
> common misconception is that Spanning Tree causes loops.  that is incorrect at best.

Sure.  If it were due to a customer or operator created loop, the
question for me becomes: was l2 traffic suppression configured, and
did it work?

-- 
Andrew Fort (afort at choqolat.org)