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Interface Designated
Name PortID Prio Cost Sts Cost Bridge ID PortID
----------------------------------------------------------
Gi 1/1 128.257 128 20000 EDS 0 32768 0001.e801.6aa8 128.257
Interface
Name Role PortID Prio Cost Sts Cost Link-type Edge Boundary
----------------------------------------------------------
Gi 1/1 ErrDis 128.257 128 20000 EDS 0 P2P No No
DellEMC# show spanning-tree msti 0
MSTI 0 VLANs mapped 1-4094
Root Identifier has priority 32768, Address 0001.e801.6aa8
Root Bridge hello time 2, max age 20, forward delay 15, max hops 20
Bridge Identifier has priority 32768, Address 0001.e801.6aa8
Configured hello time 2, max age 20, forward delay 15, max hops 20
We are the root of MSTI 0 (CIST)
Current root has priority 32768, Address 0001.e801.6aa8
CIST regional root ID Priority 32768, Address 0001.e801.6aa8
CIST external path cost 0
Number of topology changes 1, last change occured 00:00:15 ago on Gi 1/1
Port 257 (GigabitEthernet 1/1) is LBK_INC Discarding
Port path cost 20000, Port priority 128, Port Identifier 128.257
Designated root has priority 32768, address 0001.e801.6aa8
Designated bridge has priority 32768, address 0001.e801.6aa8
Designated port id is 128.257, designated path cost 0
Number of transitions to forwarding state 1
BPDU (MRecords): sent 21, received 9
The port is not in the Edge port mode
Usage
Information
The following describes the show spanning-tree msti 5 guard command shown in the following
example.
Field Description
Interface Name MSTP interface.
Instance MSTP instance.
Sts Port state: root-inconsistent (INCON Root), forwarding (FWD), listening (LIS),
blocking (BLK), or shut down (EDS Shut).
Guard Type Type of STP guard configured (Root, Loop, or BPDU guard).
Example (Guard)
DellEMC# show spanning-tree msti 5 guard
Interface
Name Instance Sts Guard type
------------------------------------
Gi 1/1 5 INCON(Root) Rootguard
Gi 1/2 5 FWD Loopguard
Gi 1/3 5 EDS(Shut) Bpduguard
spanning-tree
Enable the multiple spanning tree protocol on the interface.
Syntax
spanning-tree
To disable the multiple spanning tree protocol on the interface, use the no spanning-tree command.
Parameters
spanning-tree Enter the keywords spanning-tree to enable the MSTP on the interface.
964 Multiple Spanning Tree Protocol (MSTP)