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Admin Status: Enabled
Role: disable
State: discarding
External Admin Path Cost: 0
Internal Admin Path Cost: 0
External Oper Path Cost: 10000
Internal Oper Path Cost: 10000
Priority: 128
Designated Cost: 100000
Designated Port: 128.5
Designated Root: 32768.0.0001ECF8D8C6
Designated Bridge: 32768.0.123411114321
Fast Forwarding: Disabled
Forward Transitions: 0
Admin Edge Port: Disabled
Oper Edge Port: Disabled
Admin Link Type: auto
Oper Link Type: Point-to-point
Spanning Tree Status: Enabled
Console#
Configuring Interface Settings
You can configure RSTP and MSTP attributes for specific interfaces, including port
priority, path cost, link type, and edge port. You may use a different priority or path
cost for ports of the same media type to indicate the preferred path, link type to
indicate a point-to-point connection or shared-media connection, and edge port to
indicate if the attached device can support fast forwarding. (References to “ports” in
this section means “interfaces,” which includes both ports and trunks.)
Command Attributes
The following attributes are read-only and cannot be changed:
• STA State – Displays current state of this port within the Spanning Tree.
(See Displaying Interface Settings on page 10-10 for additional information.)
• Discarding - Port receives STA configuration messages, but does not forward
packets.
• Learning - Port has transmitted configuration messages for an interval set by
the Forward Delay parameter without receiving contradictory information. Port
address table is cleared, and the port begins learning addresses.
• Forwarding - Port forwards packets, and continues learning addresses.
• Trunk
11
– Indicates if a port is a member of a trunk.
11. STA Port Configuration only
10-13
Configuring Interface Settings
CLI
– This example shows the STA attributes for port 5.
Console#show spanning-tree ethernet 1/5
Eth 1/ 5 information
--------------------------------------------------------------
10
3
3
-
1
8