Installation manual

3-168
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CLI – This example shows the STA attributes for port 5.
Configuring Interface Settings
You can configure RSTP 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 3-165 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
13
– Indicates if a port is a member of a trunk. (STA Port Configuration only)
Console#show spanning-tree ethernet 1/5 4-234
Eth 1/ 5 information
--------------------------------------------------------------
Admin Status: Enabled
Role: Designate
State: Forwarding
External Admin Path Cost: 0
Internal Admin Path Cost: 0
External Oper Path Cost: 100000
Internal Oper Path Cost: 100000
Priority: 128
Designated Cost: 5000
Designated Port: 128.1
Designated Root: 32768.0.0013F7D37E60
Designated Bridge: 32768.0.0016B6F0713C
Fast Forwarding: Enabled
Forward Transitions: 1
Admin Edge Port: Enabled
Oper Edge Port: Enabled
Admin Link Type: Auto
Oper Link Type: Point-to-point
Flooding Behavior: Enabled
Spanning Tree Status: Enabled
Console#
13. STA Port Configuration only