Giga fiber Tap
dnewman at networktest.com
Sat Dec 1 01:42:43 UTC 2007
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> Netoptics work great. Check out their aggregation taps.
Some 4-port fiber gig taps, including Netoptics ones, drop frames when
aggregate utilization exceeds 1 Gbit/s. That can be 500 east + 501 west
or 1001 west, or 251 in each of 4 ports or whatever.
I'd heard about a kiddie porn case getting tossed because the defense
successfully argued law enforcement's tap may have dropped frames. I
didn't believe it until I measured this myself with a packet blaster.
I used VSS taps in my tests. Brian Chee of the University of Hawaii
tried this before me with a Netoptics tap, with similar results:
Endicott-Popovsky, B.E., Chee, B. and Frincke, D. Role of Calibration as
Part of Establishing Foundation for Expert Testimony, in Proceedings 3rd
Annual IFIP WG 11.9 Conference January 29-31, 2007, Orlando, FL.
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