21 May
2004
21 May
'04
10:23 a.m.
On 21 May 2004, at 08:09, Robert E. Seastrom wrote:
sonet, obviously, does not *have* to be in a ring, but it often is. unfortunately, a fair percentage of the time, the additional protection offered by a ring topology is a mirage, due to a configuration known as "collapsed backbone". in this instance, both pairs of fiber ride in the same conduit for some portion of the distance
... or even as two wavelengths on the same pair of fibre. It's a sick, sick, twisted world. Joe