Dell Force10 Z9000 Reference Manual page 1002

Interface
Name
----------------------------------------------------------
Gi 0/0 ErrDis 128.257
FTOS#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 0/0
Port 257 (GigabitEthernet 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 The following describes the show spanning-tree msti 5 guard command shown in
Information the Example below.
Field
Interface Name
Instance
Sts
Guard Type
Example (Guard)
FTOS#show spanning-tree msti 5 guard
Interface
Name
------------------------------------
Gi 0/1
Gi 0/2
Gi 0/3
1002
Role PortID Prio Cost Sts Cost Link-type Edge Boundary
128 20000 EDS 0
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)
P2P
type
Rootguard
Loopguard
Bpduguard
No No