Configuring Multiple Spanning Trees; Figure 3-55. Configuring Spanning Tree Algorithm Per Port - SMC Networks SMC8624/48T Management Manual

• 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 3-55. Configuring Spanning Tree Algorithm per Port

CLI – This example sets STA attributes for port 7.
Console(config)#interface ethernet 1/7
Console(config-if)#no no spanning-tree spanning-disabled
Console(config-if)#spanning-tree port-priority 0
Console(config-if)#spanning-tree cost 50
Console(config-if)#spanning-tree link-type auto
Console(config-if)#no spanning-tree edge-port
Console(config-if)#spanning-tree protocol-migration
Console(config-if)#

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.
S T
PANNING REE
A C
LGORITHM ONFIGURATION
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3-219
3-220
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