[159491] in North American Network Operators' Group
Re: OOB core router connectivity wish list
daemon@ATHENA.MIT.EDU (William Herrin)
Fri Jan 11 19:36:32 2013
In-Reply-To: <c6eaabe5-6f46-4c97-aa5b-fdc32742762c@email.android.com>
From: William Herrin <bill@herrin.us>
Date: Fri, 11 Jan 2013 19:36:01 -0500
To: Jay Ashworth <jra@baylink.com>
Cc: NANOG <nanog@nanog.org>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
On Fri, Jan 11, 2013 at 7:09 PM, Jay Ashworth <jra@baylink.com> wrote:
> The issue wasn't diversity, it was "is my POTS on Central Battery"; sorry
> for the comparative red herring.
The issue was: is my POTS going to survive an extended regional power
outage that my cellular/DSL/cable modem doesn't, making it a superior
OOB channel to something purely IP based during difficult conditions.
A central office line will be backed by the CO's generator. An RSU
line won't be, so it may give out during the outage. Could be a couple
hours later but it'll still run out of power. And you don't have a
whole lot of choice about which one you get.
That's one reliability measure.
Another reliability measure is testability: can you easily monitor
whether your POTS-based OOB is operational or do you discover that Bob
in accounting failed to pay the bill only when you actually need it?
What about your IP-based OOB? Same? Different?
Regards,
Bill Herrin
--
William D. Herrin ................ herrin@dirtside.com bill@herrin.us
3005 Crane Dr. ...................... Web: <http://bill.herrin.us/>
Falls Church, VA 22042-3004
