Yeah there wasn't a lack of options for fail over. I suspect there was a lack of care to plan or test for them by many parties. Regardless, I personally have backed off really blaming bell for this one other than the cell towers going down. If you can't happily lose a campus for a week, it's the design that's the issue, not the non infinite uptime of the campus.
On Wed, Dec 30, 2020, 15:03 Nathan Stratton <nat...@robotics.net> wrote: > On Wed, Dec 30, 2020 at 2:13 PM Sean Donelan <s...@donelan.com> wrote: > >> The folks on this list likely know where the central Tennessee backup >> tandem office is located. Although its semi-public knowledge, I avoided >> mentioning its location until the immediate threat passed. LATAs don't >> have much legal meaning anymore, but every LATA had at least two tandem >> offices. >> >> Nevertheless, the "cloud" still depends on physical infrastructure. >> >> I'm sure there will be several investigations by regulators why all >> the 911 PSAPs didn't fail-over to the backup tandem office. Of course, >> single-homed circuits physically connected to the Nashville CO wouldn't >> fail-over. >> > > Amazing how much data is in LERG. > > -Nathan >