
show span
2-511
show span
The show span
<option>
commands display information about Spanning Tree Bridge
services. For detailed information about the Spanning Tree algorithm and parameters,
refer to Configuring Bridging Services.
The
show span command supports the following subcommand options:
alerts
Displays all enabled circuits that are not up. Use this display to identify the ports that are
not working. The table includes the following information:
alerts disabled
base enabled
circuits [<circuit name>] stats
configuration version
configuration circuits [<circuit name>]
Circuit Name of the circuit this port is on.
State Current state of the port as the Spanning Tree Protocol application defined
it, which in this case is Port Disabled.
Designated Root Unique Bridge ID recorded as the root in the Configuration BPDUs. The
Designated Bridge for the segment to which this port is attached transmits
this value.
Designated Port Port Identifier on the Designated Bridge for this port’s segment.
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