Extreme Networks EPICenter 5.0, Manual

Page: 73 / 208

Monitoring Critical Links with Port Groups
EPICenter Concepts and Solutions Guide 73
Figure 32 shows a port group as defined in the Grouping Manager for the uplink ports on the core
devices in a specific building.
Figure 33 shows a utilization chart for the ports in the same port group. Even though the ports are on
different devices, they can be grouped into a single statistical display, which makes it very easy to
monitor the status of these critical links.
Figure 33: Utilization statistics for ports based on a port group
Using this same port group as the scope, you could define an RMON threshold rule for link utilization
(for MIB variable
extremeRtStatsUtilization
) that would generate a trap when utilization exceeded
some percentage you define on any of the ports in the port group. Figure 34 shows an example of how
such a rule might be defined. You would then use this threshold rule to define an alarm, also scoped to
the same port group