|
North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical RE: Anyone familiar with the SBC product lingo?
> -----Original Message----- > From: [email protected] [mailto:[email protected]]On Behalf Of > [email protected] > Sent: Thursday, April 14, 2005 4:35 PM > To: Luke Youngblood > Cc: 'Dan Lockwood'; [email protected] > Subject: Re: Anyone familiar with the SBC product lingo? > > > 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?) It's rare that the pairs *don't leave the building in a lateral to the loop. Once you're into the metro, you're usually okay, but yes, you need to check. Most buildings only have 1 zero manhole so it's not feasible to get a second diversified lateral and it doesnt make sense to lease a second lateral on the same pathway. -M<\\ >
|