Reference Guide

Spanning Tree Protocol (STP) | 1425
Figure 58-4. show spanning-tree 0 brief Command Example
Figure 58-5. show spanning-tree 0 guard Command Example
“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 58-2. 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)
Table 58-1. show spanning-tree 0 Command Information
Field Description
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#
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 EDS (Shut) Bpduguard