Chapter 7: Setting the Port Spanning Tree Protocol
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domain becomes the root bridge. If two or more devices have the
same priority value, the device with the numerically lowest MAC
address becomes the root bridge.
Version— Indicates the Spanning Tree Protocol version. Choose
from STP or RSTP. The default setting is RSTP.
Edge Port— Indicates edge ports on the switch. Edge ports are
not connected to spanning tree devices or to LANs that have
spanning tree devices. As a consequence, edge ports do not
receive BPDUs. If an edge port starts to receive BPDUs, it is no
longer considered an edge port by the switch.
Link Type— Designates point-to-point ports and shared ports.
Loop Guard— Indicates the BPDU loop-guard feature on the
ports is enabled (ON) or disabled (OFF). If a port that has this
feature activated stops receiving BPDU packets, the switch
automatically disables it. A port that has been disabled by the
feature remains in that state until it begins to receive BPDU
packets again or the switch is reset. The default setting for BPDU
loop-guard on the ports is disabled.