Owner's Manual

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- Path Cost (1-200000000)—The LAG’s contribution to the root path cost. The path cost is
adjusted to a higher or lower value, and forwards traffic when a path is rerouted. The path cost
has a value of 1 to 200000000. If the path cost method is short, the LAG cost default value is
4. If the path cost method is long, the LAG cost default value is 20000.
-
Root Guard —Check to enable.
-
Current State —Current (read-only) STP state of a LAG. If enabled, the LAG state determines
what forwarding action occurs with traffic. If the bridge discovers a malfunctioning LAG, the
LAG is placed in the
Broken state. Possible LAG states are:
Disabled—The LAG link is currently down.
Blocking—The LAG is blocked and cannot forward traffic or learn MAC addresses.
Listening—The LAG is in the listening mode and cannot forward traffic or learn MAC
addresses.
Learning—The LAG is in the learning mode and cannot forward traffic, but it can learn
new MAC addresses.
Forwarding —The LAG is currently in the forwarding mode, and it can forward traffic and
learn new MAC addresses.
Broken—The LAG is currently malfunctioning and cannot be used for forwarding traffic.
The remaining, read-only fields display the Designated Bridge ID, Port ID, and Cost.
Spanning Tree -> Port Settings
This screen lets you manage Spanning Tree Port Settings.
Figure 13-25. Spanning Tree -> Port Settings