[vox-tech] Redundant DSL Question

[Rod Roark]

Hehe.  Good point, but there are many things that can go=20
wrong besides the conduit.  I do have two phone lines, and
this morning's trouble was definitely with just one (the DSL
line, which had no dial tone as well as no DSL).

Indeed, service failure might not be mechanical at all, but
human error in managing the account (either on the part of
Pac Bell or the ISP).

Actually I can also get cable modem service (AT&T) here,=20
but it's pretty useless because they do not allow servers.

Cheers,

-- Rod

On Sunday 22 December 2002 10:53 pm, Charles Polisher wrote:
> On Sun, Dec 22, 2002 at 10:25:53AM -0800, Rod Roark wrote:
> > Suppose I have two DSL lines attached to my multi-homed
> > server.  I can think of two different ways to handle the
> > DNS:
>
> Two DSL lines to the same service address very
> likely share space in the same conduit all the way
> to the central office. A fault anywhere between
> you and the central office switch will likely take
> both lines offline (mister backhoe).  It'd be a
> shame to spend more for redundant service if you
> don't get added reliability.  It's hard to get
> diverse routing. I remember in the late 80s,
> working for U.S. Worst. <wavy lines> One day the
> Internet connection tanked.  Turns out we bought
> our 2nd connect from Sprint. Who resold lines they
> bought in bulk from AT&T.  Who leased those lines
> from: U.S. West. Doh!  The timing of the resulting
> downtime was so bad that the users were trying to
> decide whether to commit murder or suicide. Maybe
> you can hang an antenna from a weather balloon, or
> use RFC2549 carrier service.
>
> Good luck.