Google is speeding up its initiative to encrypt all DC to DC traffic, as
this was suspected a short time ago.
http://www.informationweek.com/security/government/nsa-fallout-google-speeds-data-encryptio/240161070
Was the unplanned L3 DF maintenance that took place on Tuesday a frantic
removal of taps? 
Was the unplanned L3 DF maintenance that took place on Tuesday a frantic
removal of taps?
No need for intrusive techniques such as direct taps:
"Of all the techniques, the bent fiber tap is the most easily deployed with
minimal
risk of damage or detection. The paper quantifies the bend loss required to
tap a
signal propagating in a single mode fiber"
Matt
> Was the unplanned L3 DF maintenance that took place on Tuesday a frantic
> removal of taps?
No need for intrusive techniques such as direct taps:
For shame.... you've sent in a link to some article behind a paywall, with
some insane download fee.
Which is an equivalent of hand-waving.
They must be hiding their content, for fear that flaws be pointed out.
"Of all the techniques, the bent fiber tap is the most easily deployed with
minimal risk of damage or detection. The paper quantifies the bend loss
required to
tap a signal propagating in a single mode fiber"
There will be some wavelengths of light, that may be on the cable, that
bending won't get a useful signal from.
Bending the cable sufficiently to break the total internal reflection
property, and allow light to leak -- will generate power losses in the
cable, that can be identified on an OTDR.
> Was the unplanned L3 DF maintenance that took place on Tuesday a frantic
> removal of taps?No need for intrusive techniques such as direct taps:
For shame.... you've sent in a link to some article behind a paywall,
with some insane download fee.
Which is an equivalent of hand-waving.They must be hiding their content, for fear that flaws be pointed out.
Oy...OK, let me find a document that spells it out
a bit more clearly for you.
"Of all the techniques, the bent fiber tap is the most easily deployed with
minimal risk of damage or detection. The paper quantifies the bend loss
required to
tap a signal propagating in a single mode fiber"There will be some wavelengths of light, that may be on the cable, that
bending won't get a useful signal from.Bending the cable sufficiently to break the total internal reflection
property, and allow light to leak -- will generate power losses in the
cable, that can be identified on an OTDR.
This patent covers a technique developed to do
non-intrusive optical tapping with a 0.5" microbend,
with only 0.5dB signal loss:
Most people aren't going to be able to tell a
0.5dB loss from a microbend tap from a splice
job.
Matt
Until you've heard an ex-NSA guy explain to you how this is done, with a
device the size of a brief-case, it can seem a little unbelievable. I had
that conversation in the late '90s.
They must be hiding their content, for fear that flaws be pointed
out.
it's the ieee. what they're hiding is a last century business model.
randy