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Cisco Prime Network 4.0 User Guide
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Chapter 12 Monitoring Carrier Ethernet Services
Working with VLANs
Viewing STP Information in VLAN Domain Views and VLAN Overlays
You can view STP segment and port information in Prime Network Vision in the map view. The icons
displayed depend on whether you view the STP information in the VLAN domain view or in a VLAN
overlay. Table 12-30 describes the icons and badges used to represent STP link and port information.
To view additional STP information in a VLAN overlay, right-click an STP link and choose Show
Callouts. The following STP port information is displayed as shown in Figure 12-35:
• Port name
• Port role
• Port state
Figure 12-35 STP Link Information in a VLAN Overlay
Table 12-30 STP Information in VLAN Domain Views and Overlays
Item Description VLAN Domain View VLAN Overlay
The STP root bridge, or root of the STP
tree, is indicated by an uppercase R.
An STP root port is the port at the root of
the STP tree. Each switching entity in the
network VLAN should have a port
designated as the root port.
The STP root port is indicated by an
uppercase R on the Ethernet flow point
that is designated the root port.
STP blocks some VLAN ports to ensure a
loop-free topology. The blocked port is
marked with a red deny badge on the side
on which traffic is denied.