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• If you do not specify any MSTI, this command displays the statistics of TC/TCN BPDUs received and
sent by all ports in all MSTIs. The displayed information is sorted by instance ID and by port name
in each MSTI.
• If you specify an MSTI, this command displays the statistics of TC/TCN BPDUs received and sent by
all ports in the specified MSTI, in port name order.
In PVST mode, follow these guidelines:
• If you do not specify any VLAN, this command displays the statistics of TC/TCN BPDUs received
and sent by all ports in all VLANs. The displayed information is sorted by VLAN ID and by port
name in each VLAN.
• If you specify a VLAN, this command displays the statistics of TC/TCN BPDUs received and sent by
all ports in the specified VLAN, in port name order.
Examples
# In MSTP mode, display the statistics of TC/TCN BPDUs received and sent by all ports on IRF member
switch 1 in MSTI 0.
<Sysname> display stp instance 0 tc slot 1
-------------- STP slot 1 TC or TCN count -------------
MSTID Port Receive Send
0 Ethernet1/0/1 6 4
0 Ethernet1/0/2 0 2
# In PVST mode, display the statistics of TC/TCN BPDUs received and sent by all ports on IRF member
switch 1 in VLAN 2.
<Sysname> system-view
[Sysname] stp mode pvst
[Sysname] display stp vlan 2 tc slot 1
-------------- STP slot 1 TC or TCN count -------------
VLAN Port Receive Send
2 Ethernet1/0/1 6 4
2 Ethernet1/0/2 0 2
Table 32 Command output
Field Description
Port Port name.
Receive Number of TC/TCN BPDUs received on each port.
Send Number of TC/TCN BPDUs sent by each port.
instance
Syntax
instance instance-id vlan vlan-list
undo instance instance-id [ vlan vlan-list ]
View
MST region view
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