7 Dec
2017
7 Dec
'17
12:58 a.m.
Warner Losh writes:
On Wed, Dec 6, 2017 at 11:49 AM, Jon Steinhart
<jon(a)fourwinds.com> wrote:
Exactly. I remember Dick Hause (?) doing a nice graphical demo on the Glance
G that showed how the phone system routed around faults and was able to because
of the "there shall be a minimum of three paths out of any exchange" rule. A
while back my long distance went out because someone hit a phone pole 40 miles
away. Couldn't even call to report it because support was in Seattle and there
was no path there from here; that was the only route.
Something to keep in mind with the internet. While TCP/IP is great for routing
around trouble it can only do so when there are alternate routes. Seem to be
fewer and fewer of these.
Jon
During the primaries when Ted Cruz would stand up and hold a dial phone
and say "this is what government regulation got you" I always thought
"Yeah, give me more of that. It's 60 years old, still works better than
what you can get today, and if you hurl it across the room it'll still
work which is more than you can say for anything made post-split."
We traded reliability for cat videos and any kind of porn you'd ever want
(and sever you wouldn't!)
Warner