Version
Description
6.2.1.1
Introduced on the E-Series.
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
Description
“Bridge Identifier...”
Lists the bridge priority and the MAC address for this STP bridge.
“Configured hello...”
Displays the settings for hello time, max age, and forward delay.
“We are...”
States whether this bridge is the root bridge for the STG.
“Current root...”
Lists the bridge priority and MAC address for the root bridge.
“Topology flag...”
States whether the topology flag and the detected flag were set.
“Number of...”
Displays the number of topology changes, the time of the last topology change, and on
what interface the topology change occurred.
“Timers”
Lists the values for the following bridge timers: hold time, topology change, hello time,
max age, and forward delay.
“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.
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
from TenGigabitEthernet 1/1/3/1
Timers:hold 1, topology change 35
hello 2, max age 20, forward_delay 15
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)
Содержание S6100
Страница 1: ...Dell Command Line Reference Guide for the S6100 ON System 9 11 2 0P1 ...
Страница 474: ...protocol list ttl0 ttl1 Dell 474 Control Plane Policing CoPP ...
Страница 979: ... show lldp neighbors display the LLDP neighbors Link Layer Discovery Protocol LLDP 979 ...
Страница 1627: ... uplink state group creates an uplink state group and enables the tracking of upstream links Uplink Failure Detection UFD 1627 ...