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S
PANNING
T
REE
A
LGORITHM
C
ONFIGURATION
3-133
CLI
– This example enables Spanning Tree Protocol, sets the mode to
RSTP, and then configures the STA and RSTP parameters.
Displaying Interface Settings
The STA Port Information and STA Trunk Information pages display the
current status of ports and trunks in the Spanning Tree.
Field Attributes
•
Spanning Tree
– Shows if STA has been enabled on this interface.
•
STA Status
– Displays current state of this port within the Spanning
Tree:
-
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.
The rules defining port status are:
- A port on a network segment with no other STA compliant bridging
device is always forwarding.
- If two ports of a switch are connected to the same segment and there
is no other STA device attached to this segment, the port with the
smaller ID forwards packets and the other is discarding.
Console(config)#spanning-tree
4-183
Console(config)#spanning-tree mode rstp
4-184
Console(config)#spanning-tree priority 45056
4-187
Console(config)#spanning-tree hello-time 5
4-185
Console(config)#spanning-tree max-age 38
4-186
Console(config)#spanning-tree forward-time 20
4-185
Console(config)#spanning-tree pathcost method long
4-188
Console(config)#spanning-tree transmission-limit 4
4-188
Console(config)#
Summary of Contents for 6726AL2 FICHE
Page 2: ......
Page 20: ...CONTENTS xvi ...
Page 24: ...TABLES xx ...
Page 28: ...FIGURES xxiv ...
Page 38: ...INTRODUCTION 1 10 ...
Page 240: ...CONFIGURING THE SWITCH 3 190 ...
Page 502: ...TROUBLESHOOTING B 4 ...
Page 515: ......