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S
PANNING
T
REE
A
LGORITHM
C
ONFIGURATION
3-173
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:
•
Port
– Port identifier. (Range: 1-8)
•
STA State
– Displays current state of this port within the Spanning
Tree. (See Displaying Interface Settings on page 3-168 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
16
– Indicates if a port is a member of a trunk.
The following interface attributes can be configured:
•
Spanning Tree
– Enables/disables STA on this interface. (Default:
Enabled)
•
Priority
– Defines the priority used for this port in the Spanning Tree
Protocol. If the path cost for all ports on a switch are the same, the port
with the highest priority (i.e., lowest value) will be configured as an
active link in the Spanning Tree. This makes a port with higher priority
less likely to be blocked if the Spanning Tree Protocol is detecting
network loops. Where more than one port is assigned the highest
priority, the port with lowest numeric identifier will be enabled.
- Default: 128
- Range: 0-240, in steps of 16
16. STA Port Configuration only
Summary of Contents for 8708L2
Page 2: ......
Page 24: ...TABLES xxiv ...
Page 28: ...FIGURES xxviii ...
Page 290: ...CONFIGURING THE SWITCH 3 238 ...
Page 584: ...COMMAND LINE INTERFACE 4 294 ...
Page 592: ...TROUBLESHOOTING B 4 ...
Page 605: ......