nanog mailing list archives

Re: Anyone familiar with the SBC product lingo?


From: Valdis.Kletnieks () vt edu
Date: Thu, 14 Apr 2005 16:34:53 -0400

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?)

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