Anyone familiar with the SBC product lingo?
Hannigan, Martin
hannigan at verisign.com
Thu Apr 14 20:53:20 UTC 2005
> -----Original Message-----
> From: owner-nanog at merit.edu [mailto:owner-nanog at merit.edu]On Behalf Of
> Valdis.Kletnieks at vt.edu
> Sent: Thursday, April 14, 2005 4:35 PM
> To: Luke Youngblood
> Cc: 'Dan Lockwood'; nanog at merit.edu
> 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<\\
>
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