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Spanning Tree Algorithm Configuration
3-205
3
CLI
– This example shows the STA attributes for port 5.
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 for STA on page 3-202 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
– Indicates if a port is a member of a trunk. (STA Port Configuration only)
Console#show spanning-tree ethernet 1/5
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Eth 1/ 5 information
--------------------------------------------------------------
Admin Status: Enabled
Role: Disabled
State: Discarding
Admin Path Cost: 0
Oper Path Cost: 200000
Priority: 128
Designated Cost: 0
Designated Port: 128.5
Designated Root: 32768.00201A25AC00
Designated Bridge: 32768.00201A25AC00
Fast Forwarding: Enabled
Forward Transitions: 0
Admin Edge Port: Enabled
Oper Edge Port: Enabled
Admin Link Type: Auto
Oper Link Type: Shared
Flooding Behavior: Enabled
Spanning Tree Status: Enabled
Loopback Detection Status: Enabled
Loopback Detection Release Mode:Auto
Loopback Detection Trap: Disabled
Admin Root Guard: Disabled
Oper Root Guard: Disabled
BPDU Guard: Disabled
BPDU Filtering: Disabled
Console#
Summary of Contents for 6152PL2 FICHE
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Page 378: ...Configuring the Switch 3 322 3 ...
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