Dell S6100 Configuration Manual page 1574

Version
6.2.1.1
Usage Information Enable spanning tree group 0 prior to using this command.
The following describes the show spanning-tree 0 command shown in the example.
Field
"Bridge Identifier..."
"Configured hello..."
"We are..."
"Current root..."
"Topology flag..."
"Number of..."
"Timers"
"Times"
"Port 1..."
"Port path..."
"Designated root..."
"Designated port..."
Example
Dell# show spann 0
Executing IEEE compatible Spanning Tree Protocol
Bridge Identifier has priority 32768, Address 0001.e800.0a56
Configured hello time 2, max age 20, forward delay 15
We are the root of the spanning tree
Current root has priority 32768 address 0001.e800.0a56
Topology change flag set, detected flag set
Number of topology changes 1 last change occurred 0:00:05 ago
Timers:hold 1, topology change 35
Times:hello 1, topology change 1, notification 0, aging 2
Port 26 (TenGigabitEthernet 1/1/1/1) is Forwarding
Port path cost 4, Port priority 8, Port Identifier 8.26
Designated root has priority 32768, address 0001.e800.0a56
Designated bridge has priority 32768, address 0001.e800.0a56
Designated port id is 8.26, designated path cost 0
Timers: message age 0, forward_delay 0, hold 0
Number of transitions to forwarding state 1
BPDU: sent:18, received 0
1574 Spanning Tree Protocol (STP)
Description
Introduced on the E-Series.
Description
Lists the bridge priority and the MAC address for this STP bridge.
Displays the settings for hello time, max age, and forward delay.
States whether this bridge is the root bridge for the STG.
Lists the bridge priority and MAC address for the root bridge.
States whether the topology flag and the detected flag were set.
Displays the number of topology changes, the time of the last topology change, and on
what interface the topology change occurred.
Lists the values for the following bridge timers: hold time, topology change, hello time,
max age, and forward delay.
List the number of seconds since the last:
• hello time
• topology change
• notification
• aging
Displays the Interface type slot/port information and the status of the interface (Disabled
or Enabled).
Displays the path cost, priority, and identifier for the interface.
Displays the priority and MAC address of the root bridge of the STG that the interface
belongs.
Displays the designated port ID.
from TenGigabitEthernet 1/1/3/1
hello 2, max age 20, forward_delay 15