Configuring Switching Information 345
Table 7-21. Spanning Tree Global Commands
CLI Command Description
spanning-tree Enables spanning-tree functionality.
spanning-tree bpdu flooding Allows flooding of BPDUs received on nonspanning-tree ports to all
other non-spanning-tree ports.
spanning-tree bpdu-protection Enables BPDU protection on a switch.
spanning-tree forward-time Configures the spanning-tree bridge forward time, which is the
amount of time a port remains in the listening and learning states
before entering the forwarding state.
spanning-tree loopguard Enables loop guard on all ports.
spanning-tree max-age Configures the spanning-tree bridge maximum age.
spanning-tree max-hops Sets the MSTP Max Hops parameter to a new value for the common
and internal spanning tree.
spanning-tree mode Configures the spanning-tree protocol type.
spanning-tree portfast bpdufilter default Discards BPDUs received on spanningtree ports in portfast mode.
spanning-tree portfast default Enables Portfast mode on all ports.
spanning-tree priority Configures the spanning-tree priority.
spanning-tree transmit hold-count Set the maximum number of BPDUs that a bridge is allowed to send
within a hello time window (2 seconds).
show spanning-tree Display the spanning-tree configuration.
show spanning-tree summary Display spanning tree settings and parameters for the switch.
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