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Command Groups 110
Spanning Tree
Command Description Mode
a
clear spanning-tree
detected-protocols
Restarts the protocol migration process on all
interfaces or on the specified interface.
PE
exit (mst)
Exits the MST configuration mode and applies
configuration changes.
MC
instance (mst)
Maps VLANs to an MST instance. MC
name (mst)
Defines the MST configuration name. MC
revision (mst)
Defines the configuration revision number. MC
show spanning-tree
Displays spanning tree configuration. PE
show spanning-tree
summary
Displays spanning tree settings and parameters
for the switch.
PE
spanning-tree
Enables spanning-tree functionality. GC
spanning-tree auto-portfast
Sets the port to auto portfast mode. IC
spanning-tree bpdu flooding
Allows flooding of BPDUs received on
nonspanning-tree ports to all other non-
spanning-tree ports.
GC
spanning-tree bpdu-
protection
Enables BPDU protection on a switch. GC
spanning-tree cost
Configures the spanning tree path cost for a
port.
IC
spanning-tree disable
Disables spanning tree on a specific port. IC
spanning-tree forward-time
Configures the spanning tree bridge forward
time.
GC
spanning-tree guard
Selects whether loop guard or root guard is
enabled on an interface.
IC
spanning-tree loopguard
Enables loop guard on all ports. GC
spanning-tree max-age
Configures the spanning tree bridge maximum
age.
GC
spanning-tree max-hops
Sets the MSTP Max Hops parameter to a new
value for the common and internal spanning
tree.
GC
2CSPC4.X8100-SWUM102.book Page 110 Friday, March 15, 2013 8:56 AM