5000 Series Layer 2/3 Managed Data Center Switch CLI Reference Guide
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Command Mode
•
Privileged EXEC
•
User EXEC
Display Parameters
MST Instance ID
Existing MST instance ID.
Port Identifier
Port identifier for the
specified port (selected MST instance), comprised
of port priority and the interface number of the port.
Port Priority
Port priority within the selected MST instance. The port priority is
displayed in multiples of 16.
Port Forwarding State
Current spanning tree state of this port.
Port Role
Port role values: Root Port, Designated Port, Alternate Port, Backup
Port, Master Port or Disabled Port.
Auto-Calculate Port Path
Cost
Indicates if auto calculation is enabled.
Port Path Cost
Displays the path cost of the specified port. The value range is between
1 and 65535. The path cost is typically defined as 1000 ÷ /LAN speed in
megabits per second.
Designated Root
Designated root identifier for the port.
Root Path Cost
The path cost to reach root bridge. The root path cost is zero if bridge is
the root instance.
Designated Bridge
Designated Port bridge identifier.
Designated Port Identifier
Port on the Designated Bridge offering lowest LAN cost.
Loop Inconsistent State
If loop is in inconsistent state, the port has failed to receive BPDUs while
configured with loop guard enabled. Loop inconsistent state places the
port in a blocking state until subsequent BPDU is received.
Transitions Into Loop
Inconsistent State
The number of times transitioned into a loop inconsistent state.
Transitions Out of Loop
Inconsistent State
The number of times transitioned out of loop inconsistent state.
If 0 (defined as the default CIST ID) is specified as the
mstid
, the command displays the settings and
parameters for a specific switch port within the common and internal spanning tree. The following display:.
Port Identifier
Port identifier within the CST.
Port Priority
Priority within the CST.
Port Forwarding State
Forwarding state within the CST.
Port Role
R
ole of the specified interface within the CST.
Auto-Calculate Port Path
Cost
Indicates if auto calculation is enabled or not (disabled).
Port Path Cost
Configured path cost for
the specified interface.
Auto-Calculate External
Port Path Cost
Indicates whether auto calculation for external port path cost is enabled.
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