Within a few minutes of each other, I got calls from opposite ends of my network complaining about outages. Really odd, I thought, as I was in the middle of checking out some things.
The short of it is as follows: Sometime yesterday, not exactly sure what time, two backbone links suddenly began going up and down, 5 sec up, 5 sec down. One is 10 miles long, runs due east west from the east end of town into the mountains. The other is 10 miles south and somewhat west of the other one, and runs north-south, with the north end somewhat west of the south end. The only common factor? Both were on 5805. About 2 months ago, both were down suddenly, and I had to move both from 5745 to 5805, all frequencies in between were so "hot" I could not establish a link with a rssi of -72. Again, the links end are 10 miles apart at their closest ends and run about 170 degrees angle from each other. Today, 5745 is clear and clean with no apparent issues as I have an AP on it carrying 20 customers over looking the only common area between the two links, 5805 is buried, over a span of 30 miles. The pattern was obvious... about 5 seconds of no data moving, 5 seconds fine, steady pattern going on and on and on. About 50% ping loss, with the 1-ping-per-second showing 5 good, 5 missed, 5 good, 5 missed. What could possibly be that strong that it can take down such widely spread apart links? In both cases, there is considerable elevation change, such that "low" ends see nothing but dirt and sky (there's NOTHING but mountains and clear sky beyond my higher elevation sites in both cases) beyond their respective "other" ends, and that the far ends have considerable downtilt and their respective beam patterns do not intersect, but instead, point into dirt. Something has to be so strong that it takes down the links from OUTSIDE of the beam patterns of 26 db (or higher) grids. -------------------------------------------- Mark Koskenmaki <> Neofast, Inc Broadband for the Walla Walla Valley and Blue Mountains 541-969-8200 -- WISPA Wireless List: [EMAIL PROTECTED] Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
