Dell PowerConnect 54 Series, User Manual

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Configuring Device Information
Modifying the LAG STP Parameters
1
Open the STP LAG Settings page.
2
Select a LAG from the Select a LAG drop-down menu.
3
Modify the fields as desired.
4
Click Apply Changes .
The STP LAG parameters are modified, and the device is updated.
Defining STP LAG Settings Using CLI Commands
The following table summarizes the equivalent CLI commands for defining STP LAG settings.
The following is an example of the CLI commands:
Configuring Rapid Spanning Tree
While Classic Spanning Tree guarantees preventing L2 forwarding loops in a general network topology,
convergence can take up to 30-60 seconds. The convergence time is considered too long for many
applications. When network topology allows, faster convergence may be possible. The
Rapid Spanning Tree
Protocol (RSTP) detects and uses of network topologies that provide faster convergence of the spanning
tree, without creating forwarding loops.
Table 7-21. STP LAG Settings CLI Commands
CLI Command Description
spanning-tree Enables spanning tree.
spanning-tree disable Disables spanning tree on a specific
LAG.
spanning-tree cost cost Configures the spanning tree cost
contribution of a LAG.
spanning-tree port-priority priority Configures port priority.
spanning-tree guard root Enables root guard on all the spanning
tree instances on that interface.
show spanning-tree
[
ethernet
interface
|
port-channel port-channel-
number ]
Displays spanning tree configuration.
show spanning-tree [ detail ] [ active |
blockedports ]
Displays detailed spanning tree
information on active or blocked ports.
console(config)# interface port-channel 1
console(config-if)# spanning-tree port-priority 16