Port Protocol :enabled
Port Role :Designated Port
Port Priority :128
Port Cost(Dot1T ) :Config=auto / Active=200000000
Desg. Bridge/Port :32768.000b-09d4-b66c / 128.82
Port Edged :Config=disabled / Active=disabled
Point-to-point :Config=auto / Active=true
Transit Limit :147 packets/hello-time
Protection Type :None
Port Stp Mode :MSTP
Port Protocol Type :Config=auto / Active= dot1s
BPDU Encapsulation :Config=stp / Active=stp
PortTimes :Hello 2s MaxAge 20s FwDly 15s RemHop 20
TC or TCN send :0
TC or TCN received :0
BPDU Sent :7095
TCN: 0, Config: 0, RST: 0, MST: 7095
BPDU Received :2
TCN: 0, Config: 0, RST: 0, MST: 2
Run the display stp command on CE3 and CE4 to view the root in the MST region. You can
find that a spanning tree is calculated between CE3 and CE4. GE 1/0/0 of CE3 is a root port,
and CE 1/0/0 of CE4 is a designated port.
<CE3> display stp
-------[CIST Global Info][Mode MSTP]-------
CIST Bridge :32768.00e0-fc9f-3257
Bridge Times :Hello 2s MaxAge 20s FwDly 15s MaxHop 20
CIST Root/ERPC :32768.00e0-fc9a-4315 / 199999
CIST RegRoot/IRPC :32768.00e0-fc9f-3257 / 0
CIST RootPortId :128.82
BPDU-Protection :disabled
TC or TCN received :4
TC count per hello :4
STP Converge Mode :Normal
Time since last TC received :0 days 3h:57m:0s
----[Port17(GigabitEthernet1/0/0)][FORWARDING]----
Port Protocol :enabled
Port Role :Root Port
Port Priority :128
Port Cost(Dot1T ) :Config=auto / Active=200000000
Desg. Bridge/Port :32768.00e0-fc9a-4315 / 128.82
Port Edged :Config=disabled / Active=disabled
Point-to-point :Config=auto / Active=true
Transit Limit :147 packets/hello-time
Protection Type :None
Port Stp Mode :MSTP
Port Protocol Type :Config=auto / Active= dot1s
BPDU Encapsulation :Config=stp / Active=stp
PortTimes :Hello 2s MaxAge 20s FwDly 15s RemHop 20
TC or TCN send :0
TC or TCN received :0
BPDU Sent :238
TCN: 0, Config: 0, RST: 0, MST: 238
BPDU Received :9745
TCN: 0, Config: 0, RST: 0, MST: 9745
<CE4> display stp
-------[CIST Global Info][Mode MSTP]-------
CIST Bridge :32768.00e0-fc9a-4315
Bridge Times :Hello 2s MaxAge 20s FwDly 15s MaxHop 20
CIST Root/ERPC :32768.00e0-fc9a-4315 / 0
CIST RegRoot/IRPC :32768.00e0-fc9a-4315 / 0
CIST RootPortId :0.0
BPDU-Protection :disabled
TC or TCN received :2
TC count per hello :2
STP Converge Mode :Normal
Time since last TC received :0 days 5h:33m:17s
----[Port17(GigabitEthernet1/0/0)][FORWARDING]----
Quidway S7700 Smart Routing Switch
Configuration Guide - Ethernet 11 Layer 2 Protocol Transparent Transmission Configuration
Issue 01 (2011-07-15) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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