H3C Technologies H3C S12500 Series Switches - Manual (Page 110)

97
Task Command Remarks
Display information about ports shut
down by spanning tree protection
functions.
display stp down-port [ | { begin |
exclude | include } regular-expression ] Available in any
view.
Display the historical information of port
role calculation for the specified MSTI or
all MSTIs (in standalone mode).
display stp [ instance instance-id ] history
[ slot slot-number ] [ | { begin | exclude |
include } regular-expression ]
Available in any
view.
Display the historical information of port
role calculation for the specified MSTI or
all MSTIs (in IRF mode).
display stp [ instance instance-id ] history
[ chassis chassis-number slot slot-number ]
[ | { begin | exclude | include }
regular-expression ]
Available in any
view.
Display the statistics of TC/TCN BPDUs
sent and received by all ports in the
specified MSTI or all MSTIs (in standalone
mode).
display stp [ instance instance-id ] tc [ slot
slot-number ] [ | { begin | exclude |
include } regular-expression ]
Available in any
view.
Display the statistics of TC/TCN BPDUs
sent and received by all ports in the
specified MSTI or all MSTIs (in IRF mode).
display stp [ instance instance-id ] tc
[ chassis chassis-number slot slot-number ]
[ | { begin | exclude | include }
regular-expression ]
Available in any
view.
Display the spanning tree status and
statistics (in standalone mode).
display stp [ instance instance-id ]
[ interface interface-list | slot slot-number ]
[ brief ] [ | { begin | exclude | include }
regular-expression ]
Available in any
view.
Display the spanning tree status and
statistics (in IRF mode).
display stp [ instance instance-id ]
[ interface interface-list | chassis
chassis-number slot slot-number ] [ brief ]
[ | { begin | exclude | include }
regular-expression ]
Available in any
view.
Display the MST region configuration
information that has taken effect.
display stp region-configuration [ |
{ begin | exclude | include }
regular-expression ]
Available in any
view.
Display the root bridge information of all
MSTIs. display stp root [ | { begin | exclude |
include } regular-expression ] Available in any
view.
Display the list of VLANs with VLAN
Ignore enabled. display stp ignored-vlan [ | { begin |
exclude | include } regular-expression ] Available in any
view.
Clear the spanning tree statistics. reset stp [ interface interface-list ]
Available in user
view.
Spanning tree configuration examples
MSTP configuration example
Network requirements
As shown in Figure 29 :
• All devices on the network are in the same MST region. Device A and Device B work at the
distribution layer. Device C and Device D work at the access layer.