Incident notification

William Herrin bill at
Fri Nov 21 18:56:50 UTC 2014

On Fri, Nov 21, 2014 at 10:56 AM, Matthew Huff <mhuff at> wrote:
> The advantage of SMS is that it is out of band. Any smtp
> or other IP based solution requires a stable and working
> network environment, which is what the alert may be
> trying to tell you is down.

Which is why you locate a small NMS outside your network (on a VM
somewhere) whose only job is to start alerting when it can't reach the NMS
inside your network. That also helps when your interior NMS system gets
gummed up or when a general emergency in your locality damages your
infrastructure at the same time as the SMS provider's infrastructure.

If your monitoring system is structured well to begin with, email has
efficacy comparable to sms. A smartphone app expecting heartbeats via your
in-band infrastructure has effectiveness superior to both.

Bill Herrin

William Herrin ................ herrin at  bill at
Owner, Dirtside Systems ......... Web: <>
May I solve your unusual networking challenges?

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