Specifications

Spanning Tree Configuration Command Set
Reviewing and Setting Spanning Tree Bridge Parameters
SecureStack A2 Configuration Guide 5-7
Example
This example shows how to display the device’s Spanning Tree configuration:
Table 5-1 shows a detailed explanation of command output.
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A2(rw)->show spantree stats
Spanning tree status - enabled
Spanning tree instance - 0
Designated Root MacAddr - 00-e0-63-9d-c1-c8
Designated Root Priority - 0
Designated Root Cost - 10000
Designated Root Port - lag.0.1
Root Max Age - 20 sec
Root Hello Time - 2 sec
Root Forward Delay - 15 sec
Bridge ID MAC Address - 00-01-f4-da-5e-3d
Bridge ID Priority - 32768
Bridge Max Age - 20 sec
Bridge Hello Time - 2 sec
Bridge Forward Delay - 15 sec
Topology Change Count - 7
Time Since Top Change - 00 days 03:19:15
Max Hops - 20
Table 5-1 show spantree Output Details
Output What It Displays...
Spanning tree status Whether Spanning Tree is enabled or disabled.
Spanning tree instance Spanning Tree ID.
Designated Root MacAddr MAC address of the designated Spanning Tree root
bridge.
Designated Root Priority Priority of the designated root bridge.
Designated Root Cost Total path cost to reach the root.
Designated Root Port Port through which the root bridge can be reached.
Root Max Age Amount of time (in seconds) a BPDU packet should be
considered valid.
Root Hello Time Interval (in seconds) at which the root device sends
BPDU (Bridge Protocol Data Unit) packets.
Root Forward Delay Amount of time (in seconds) the root device spends in
listening or learning mode.