Dell PowerEdge VRTX User Manual

Page 293

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FILE LOCATION: C:\Users\gina\Desktop\Checkout_new\Dell Plasma\User

Guide\Plasma_UGSwitching_STP.fm

D E L L CO N F I D E N T I A L – P R E L I MI N A RY 4/ 1 8 /1 3 - F O R PR O O F O N LY

1 Click Switching > Spanning Tree > STP Port Settings in the tree view to

display the STP Port Settings: Summary page.
The ports and their STP settings are displayed.

2 To modify STP settings on a port, click Edit.
3 Select the port, and enter the fields:

STP — Enable/disable STP on the port.

Fast Link — Check to enable Fast Link mode for the port. If this is

enabled, the Port State is automatically placed in the Forwarding state

when the port 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.

BPDU Guard — Check to enable BPDU Guard on the port.

Root Guard — Check to prevent devices outside the network core

from being assigned the spanning tree root.

Port State — Displays the current STP state of a port. If the port state

is not disabled, it determines what forwarding action is taken on

traffic. The possible port states are:

Disabled — STP is currently disabled on the port. The port

forwards traffic while learning MAC addresses.

Blocking — The port is currently blocked and cannot be used to

forward traffic or learn MAC addresses. Blocking is displayed

when Classic STP is enabled.

Listening — The port is currently in the listening mode. The port

cannot forward traffic nor can it learn MAC addresses.

Learning — The port is currently in the learning mode. The port

cannot forward traffic, however it can learn new MAC addresses.

Forwarding — The port is currently in the forwarding mode. The

port can forward traffic and learn new MAC addresses.

Role — Displays the port role assigned by the STP algorithm that

provides STP paths. The possible options are:

Root — This port provides the lowest cost path to forward packets

to root switch.

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