Review: The best network monitoring system on earth
ScienceLogic EM7 brings ultraflexible, ultrascalable, carrier-grade network monitoring to the enterprise
More signal, less noise
EM7 provides similarly fine-grained control over alerting. Setting up the InteropNet involves putting together a large number of pieces in a short amount of time. To speed the process, the EM7 crew would discover assets and put them into maintenance mode in order to ignore errors as we tested parts of the network during construction. At one point, we knew we had a bunch of optical errors as the fiber crew cleaned and connected more of the show infrastructure, but we didn't want to be overwhelmed by alerts and flashing lights. EM7 allowed us to change the alerting so that small numbers of minor errors would be ignored, but increasing numbers of minor errors over a short time would automatically escalate from minor to major to critical.
The happy result: We weren't notified of optical errors until the routers started load balancing over both our major WAN links. Minor errors were ignored until they started skyrocketing due to the increase in the amount of traffic on our secondary link. This escalated alert got our attention and forced us to look for missed optical path issues. It turned out someone had plugged in a dirty fiber cable that drove some grit into the optics of a 10G interface module. The escalated alert gave us enough time to replace the damaged components before the open of the exhibit floor.