Re: Anyone familiar with the SBC product lingo?

["Stephen J. Wilcox" <steve () telecomplete co uk>]

On Thu, 14 Apr 2005, Valdis.Kletnieks () vt edu wrote:

> On Thu, 14 Apr 2005 16:15:41 EDT, Luke Youngblood said:
> > SONET simply means you are on a Sonet ring:  Two redundant connections to
> > the central office.  If someone gets a little crazy with a backhoe your line
> > is guaranteed to stay up (ask about SLAs, and make sure they will refund
> > part of your monthly bill if you have an outage).  That's why it costs over
> > twice as much.
>
> And remember to ask questions - make sure they've actually got the two
> connections routed differently.  Remember that if the backhoe hits the conduit,
> *all* the fiber pairs go - and if both runs were in the same conduit, you're
> still dead....
>
> (Anybody here *NOT* seen cases where the 2 fibers leave the building on opposite
> sides, go down different streets - and rejoin 2 miles down the way because
> there's only one convenient bridge/tunnel/etc over the river, or similar?)

yes. but in my case we checked it and it was okay on install but was rerouted at 
some point. someone broke the ducting and we lost a bunch of oc48s which was 
bad.

you'll never get better redundancy than having more than one carrier.

Steve