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Network Administration: Spanning Tree and LAG
FILE LOCATION: C:\Users\gina\Desktop\Checkout_new\Dell Astute\User
Guide\Dell_Astute_Network_Admin_STP.fm
D E L L C O N F ID E N T IA L – P R E L IM I N A R Y 8 / 9 /1 6 - FO R PR O O F O N L Y
•
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 bridge.
•
Designated
— This port is the interface through which the bridge
is connected to the LAN, which provides the lowest cost path
from the LAN to the Root Bridge.
•
Disabled
— This port is not participating in the Spanning Tree.
–
Speed
— Displays the speed at which the port is operating.
–
Path Cost
— Enter the port contribution to the root path cost. The
path cost is adjusted to a higher or lower value, and is used to forward
traffic when a path being rerouted. Select
Use Default
to use the
default path cost.
–
Priority
— Select the priority value that influences the port choice
when a bridge has two ports connected in a loop. The priority value is
provided in increments of 16.
–
Designated Bridge ID
— Displays the bridge priority and the MAC
address of the designated bridge.
–
Designated Port ID
— Displays the designated port’s priority and
interface.
–
Designated Cost
— Displays the cost of the port participating in the
STP topology. Ports with a lower cost are less likely to be blocked if
STP detects loops.
–
Forward Transitions
— Displays the number of times the port has
changed from the
Forwarding
state to
Blocking
.
–
LAG
— Displays the LAG to which the port is attached.
