Command Line Reference Guide

1352 | Spanning Tree Protocol (STP)
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Example 2
(show
spanning-tree 0
brief)
FTOS#show span 0 brief
Executing IEEE compatible Spanning Tree Protocol
Root ID Priority 32768
Address 0001.e800.0a56
Root Bridge hello time 2, max age 20, forward delay 15
Bridge ID Priority 32768,
Address 0001.e800.0a56
Configured hello time 2, max age 20, forward delay 15
Interface Designated
Name PortID Prio Cost Sts Cost Bridge ID PortID
-------------- ------ ---- ---- --- ----- ----------------- ------
Gi 1/1 8.26 8 4 FWD 0 32768 0001.e800.0a56 8.26
Gi 1/2 8.27 8 4 FWD 0 32768 0001.e800.0a56 8.27
Gi 1/3 8.28 8 4 FWD 0 32768 0001.e800.0a56 8.28
FTOS#
Example 3
(show
spanning-tree 0
guard)
FTOS#show spanning-tree 0 guard
Interface
Name Instance Sts Guard type
--------- -------- --------- ----------
Gi 0/1 0 INCON(Root) Rootguard
Gi 0/2 0 LIS Loopguard
Gi 0/3 0 BLK Bpduguard
“Times” List the number of seconds since the last:
• hello time
• topology change
• notification
• aging
“Port 1...” Displays the Interface type slot/port information and the status of the interface
(Disabled or Enabled).
“Port path...” Displays the path cost, priority, and identifier for the interface.
“Designated root...” Displays the priority and MAC address of the root bridge of the STG that the interface
belongs.
“Designated port...” Displays the designated port ID
Table 60-149. show spanning-tree 0 Command Information
Field Description
Table 60-150. show spanning-tree 0 guard Command Example Information
Field Description
Interface Name STP interface
Instance STP 0 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)