AMX NXA-ENET24 Instruction Manual page 146

Configuring the Switch
Web – Click Spanning Tree, STA Port Configuration or STA Trunk Configuration. Modify the
required attributes, then click Apply.
FIG. 72 Configuring Spanning Tree Algorithm per Port
CLI – This example sets STA attributes for port 5.
Console(config)#interface ethernet 1/5
Console(config-if)#spanning-tree port-priority 0333
Console(config-if)#spanning-tree cost 50332
Console(config-if)#spanning-tree link-type auto335
Console(config-if)#no spanning-tree edge-port333
Console(config-if)#spanning-tree protocol-migration335
Console(config-if)#spanning-tree spanning-disabled331
Console(config-if)#
130
Auto – The switch automatically determines if the interface is attached to a point-to-
point link or to shared media. (This is the default setting.)
Admin Edge Port (Fast Forwarding) – You can enable this option if an interface is
attached to a LAN segment that is at the end of a bridged LAN or to an end node. Since
end nodes cannot cause forwarding loops, they can pass directly through to the spanning
tree forwarding state. Specifying Edge Ports provides quicker convergence for devices
such as workstations or servers, retains the current forwarding database to reduce the
amount of frame flooding required to rebuild address tables during reconfiguration
events, does not cause the spanning tree to initiate reconfiguration when the interface
changes state, and also overcomes other STA-related timeout problems. However,
remember that Edge Port should only be enabled for ports connected to an end-node
device. (Default: Disabled)
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)
NXA-ENET Software Management Guide