S
PANNING
T
REE
A
LGORITHM
C
ONFIGURATION
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•
Migration
– If at any time the switch detects STP BPDUs, including
Configuration or Topology Change Notification BPDUs, it will
automatically set the selected interface to forced STP-compatible
mode. However, you can also use the Protocol Migration button to
manually re-check the appropriate BPDU format (RSTP or
STP-compatible) to send on the selected interfaces.
(Default: Disabled)
Web
– Click Spanning Tree, STA, Port Configuration or Trunk
Configuration. Modify the required attributes, then click Apply.
Figure 3-66. Configuring Spanning Tree Algorithm per Port
CLI
– This example sets STA attributes for port 7.
Configuring Multiple Spanning Trees
MSTP generates a unique spanning tree for each instance. This provides
multiple pathways across the network, thereby balancing the traffic load,
preventing wide-scale disruption when a bridge node in a single instance
fails, and allowing for faster convergence of a new topology for the failed
instance.
Console(config)#interface ethernet 1/7
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Console(config-if)#no no spanning-tree spanning-disabled
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Console(config-if)#spanning-tree port-priority 0
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Console(config-if)#spanning-tree cost 50
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Console(config-if)#spanning-tree link-type auto
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Console(config-if)#no spanning-tree edge-port
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Console(config-if)#spanning-tree protocol-migration
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Console(config-if)#
Summary of Contents for 8728L2 - annexe 1
Page 2: ......
Page 15: ...CONTENTS xi ...
Page 19: ...TABLES xv ...
Page 32: ...INTRODUCTION 1 10 ...
Page 46: ...INITIAL CONFIGURATION 2 14 ...
Page 177: ...PORT CONFIGURATION 3 131 Figure 3 59 Displaying Etherlike and RMON Statistics ...
Page 258: ...CONFIGURING THE SWITCH 3 212 ...
Page 524: ...COMMAND LINE INTERFACE 4 266 ...
Page 532: ...TROUBLESHOOTING B 4 ...
Page 545: ......