Spanning-Tree - Dell C9000 Series Reference Manual

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
Te 0/0
Port 257 (TenGigabitEthernet 0/0) 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
Interface Name
Instance
Sts
Guard Type
Example (Guard)
Dell#show spanning-tree msti 5 guard
Interface
Name
------------------------------------
Te 0/1
Te 0/2
Te 0/3

spanning-tree

Enable the multiple spanning tree protocol on the interface.
C9000 Series
Syntax
spanning-tree
Description
MSTP interface.
MSTP instance.
Port state: root-inconsistent (INCON Root), forwarding (FWD),
listening (LIS), blocking (BLK), or shut down (EDS Shut).
Type of STP guard configured (Root, Loop, or BPDU guard).
Instance Sts Guard
5 INCON(Root)
5 FWD
5 EDS(Shut)
type
Rootguard
Loopguard
Bpduguard
Multiple Spanning Tree Protocol (MSTP) 1435