Extreme Networks EPICenter 4.1, Руководство по установке программного обеспечения

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342 EPICenter Software Installation and User Guide
The Spanning Tree Monitor
STP configuration must be done through the EPICenter Telnet applet or through the ExtremeWare
command line interface. The STP monitor displays summary and detailed STP configuration
information about the devices being managed by the EPICenter server. It allows you to view STP
configuration information network-wide rather than only device by device as is the case through the
ExtremeWare CLI.
The EPICenter server receives STP topology information through traps from the SNMP agent in the
switch, and through polling. Not all STP-related changes generate traps—for example, updating the root
port and path cost for the previous root when the root changes. The EPICenter server relies on device
polling to detect these types of changes. However, device polling by default is only done every 90
minutes, so if you want STP status updated more frequently, you may want to group your STP devices
into their own device group and change the polling interval to a more appropriate interval.
For more details on STP, see the ExtremeWare Software User Guide.
Displaying STP Domain Information
Click the STP button in the EPICenter Navigation Toolbar to run the Spanning Tree Monitor module. The
STP Domains window appears, as shown in Figure 172.
Figure 172: STP Domains view
This view, displayed when the root node of the Component Tree is selected, shows information about
the STP domains configured on the devices managed by the EPICenter server that are running
ExtremeWare 6.2.2 or later.