Dell PowerSwitch S4820T FTOS 8.3.19.0 Command Line Reference Guide for the S48 - Page 1043
show spanning-tree msti, View the Multiple Spanning Tree instance., EXEC Privilege
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show spanning-tree msti c e s View the Multiple Spanning Tree instance. Syntax Parameters Command Modes Usage Information Command History Example show spanning-tree msti [instance-number [brief]] [guard] instance-number brief guard [Optional] Enter the Multiple Spanning Tree Instance number Range: 0 to 63 [Optional] Enter the keyword brief to view a synopsis of the MST instance. [Optional] Enter the keyword guard to display the type of guard enabled on an MSTP interface and the current port state. EXEC EXEC Privilege You must enable Multiple Spanning Tree Protocol prior to using this command. Version 8.3.19.0 Version 8.4.2.1 Version 8.3.7.0 Version 7.6.1.0 Version 7.5.1.0 Version 6.4.1.0 Introduced on S4820T Support for the optional guard keyword was added on the C-Series, S-Series, and E-Series TeraScale. Introduced on S4810 Added support for S-Series Added support for C-Series Expanded to display port error disable state (EDS) caused by loopback BPDU inconsistency (Refer to the following example.) FTOS#show spanning-tree msti 10 MSTI 10 VLANs mapped 101-105 Bridge Identifier has priority 32768, Address 0001.e802.3506 Configured hello time 2, max age 20, forward delay 15, max hops 5 Current root has priority 16384, Address 0001.e800.0a5c Number of topology changes 0, last change occurred 3058087 Port 82 (GigabitEthernet 2/0) is designated Forwarding Port path cost 0, Port priority 128, Port Identifier 128.82 Designated root has priority 16384, address 0001.e800.0a:5c Designated bridge has priority 32768, address 0001.e802.35:06 Designated port id is 128.82, designated path cost Number of transitions to forwarding state 1 BPDU (Mrecords): sent 1109, received 0 The port is not in the portfast mode Port 88 (GigabitEthernet 2/6) is root Forwarding Port path cost 0, Port priority 128, Port Identifier 128.88 Designated root has priority 16384, address 0001.e800.0a:5c Designated bridge has priority 16384, address 0001.e800.0a:5c Designated port id is 128.88, designated path cost Number of transitions to forwarding state 4 Multiple Spanning Tree Protocol (MSTP) | 1043