Monday, Trish and I headed to Bradley with various equipment in tow. Our goal: test the local network for video connectivity issues.
I borrowed a fiber/CAT5 tester from the local college's telecommunications department. Once we arrived, we hooked the tester up to one run of fiber. the tester consists of two end pieces - once each end of the cable to be tested is plugged into each end of the fiber, the system runs a variety of tests. the first test checks for the maximum throughput speed (up to 1000Mbps). The next series of tests runs 'dummy data' between the connections in an effort to see what actual traffic the line can handle.
Over the course of several hours (most of the day, actually), we ran tests on each of the four fiber connections (each one for a different video system). Each and every time, the tests came back with flying colors - 1000Mbps and "pass" every other test. We also tested the CAT5 connections to ensure they, too, were operating at maximum ability. They were. Again, 1000Mbps and "pass" all the other tests.
This tells me that the issue is not a local one. However, just to be sure, we also swapped out the core switch that connects the various video systems to the rest of the world. After swapping out the switch, everything ran just as it had before. Again, this indicates to me that the issue is not a local one (or at least not a local one that I can tell).
While there, we also went to each distance learning classroom and configured the laptops for connectivity, printing, etc. We finished in each room except for Lab #3. That will get done next time I am at the school (thinking Wednesday).
Anecdotally, we noticed that the data connectivity seemed to be running pretty slowly (I downloaded required software and it showed to be running at T1 speeds versus the 10Mbps they have added). Something seems amiss on the data side.
the school is set up such that the data traffic and the compressed video traffic are not on the same LAN. once the data hits the router, it is no longer a school-fixable issue - we call in the support from the state folks.
once back at the co-op (about an hour leftof the work day), I kicked out an email to appropriate personnel regarding our findings at Bradley. I also created a quick network map of the video LAN to help with troubleshooting and forwarded that on to DIS personnel.
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