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> Modern infrastructure routers have the ability to replicate traffic on any network interface to a second network interface, and to do this without affecting
by ajsnigrutin 4y ago
> Modern infrastructure routers have the ability to replicate traffic on any network interface to a second network interface, and to do this without affecting throughput or latency through the node. I have long suspected that the story of "beam splitters" on optic fibers was a red herring to distract from how it is really done.
They probably do both... beam spliters are nice, for when you don't even want the telco to know.
- autoexec 4y ago> They probably do both... beam spliters are nice, for when you don't even want the telco to know. They are way past bothering to hide what they do. Decades ago they were happy to march right into a telco's headquarters and take over parts of their facility for their own use and then set up splitters. https://en.wikipedia.org/wiki/Room_641A https://en.wikipedia.org/wiki/Room_641A
- mhh__ 4y agoIs a beam splitter not visible to something like time domain reflectometry?
- ajsnigrutin 4y agoDepends on how much the split away.... if it's like 0.1dB loss, it could be explained by a normal bend in the fiber.