Spanning-Tree Operation
802.1D Spanning-Tree Protocol (STP)
Indicates that Trk1 (Trunk 1)
provides the currently active path
to the STP root device.
Redundant STP link in the Blocking
state.
Links to PC or Workstation End
Nodes
Redundant STP link in the
Forwarding state. (See the “Root
Port field, above. This is the
currently active path to the STP
root device.)
Figure 6-22. Example of a Show Spanning-Tree Listing for the Topology Shown in Figure 6-21
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