Dell 28xx Network Router User Manual


 
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Defining STP LAG Settings
The STP LAG Settings page contains fields for assigning STP aggregating port parameters. To open the
STP LAG Settings page, click Switch Spanning Tree LAG Settings in the tree view.
Figure 7-18. STP LAG Settings
Select a LAG
— The user-defined LAG. For more information, see "Defining LAG Membership" on
page 134.
STP
— Enables or disables STP on the LAG.
Fast Link
— Enables Fast Link mode for the LAG. If Fast Link mode is enabled for a LAG, the
LAG
State
is automatically placed in the
Forwarding
state
when the LAG is up. Fast Link mode optimizes
the time it takes for the STP protocol to converge. STP convergence can take 30-60 seconds in large
networks.
Root Guard —
When checked, prevents devices outside the network core from being assigned the
spanning tree root.