Mstp Troubleshooting; Monitor And Debug Command List - Digitalchina Networks DCS-3950 series Manual

Figure 10-4 The Topology Of the Instance 3 after the MSTP Calculation
5
SW2
Figure 10-5 The Topology Of the Instance 4 after the MSTP Calculation

10.4 MSTP Troubleshooting

10.4.1 Monitor and Debug Command List

10.4.1.1 show spanning-tree
Command: show spanning-tree [mst [<instance-id>]] [interface <interface-list>]
[detail]
Function: Display the MSTP Information.
Parameter: <instance-id> sets the instance ID. The valid range is from 0 to 48;
<interface-list> sets interface list; detail sets the detailed spanning-tree information.
Command mode: Admin Mode
Usage Guide: This command can display the MSTP information of the instances in the
current bridge.
Example: Display the information of bridge MSTP as below tables:
Switch#sh spanning-tree
Standard : IEEE 802.1s
Bridge MAC : 00:03:0f:01:0e:30
Bridge Times : Max Age 20, Hello Time 2, Forward Delay 15
Force Version: 3
2
3
x 4
4
5
-- MSTP Bridge Config Info --
DCS-3950 series Ethernet switch manual
2 x
x
3
6
6
7
SW4
7 x
SW3
190