Dell PowerEdge VRTX User Manual

Page 300

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

Guide\Plasma_UGSwitching_STP.fm

D E L L C O N F ID E N T IA L – P R E L IM I N A RY 4 / 1 8 /1 3 - F O R P R O O F O N LY

Backup — This port provides a backup path to the designated

port. Backup ports occur only when two ports are connected in a

loop by a point-to-point link. Backup ports also occur when a LAN

has two or more connections connected to a shared segment.

Disabled — This port is not participating in the Spanning Tree.

Mode — Displays if RSTP is enabled.

Fast Link Operational Status — Displays if Fast Link is enabled or

disabled for the port or LAG. If Fast Link is enabled for an interface,

the interface is automatically placed in the forwarding state. The

possible options are:
Enable — Fast Link is enabled.

Disable — Fast Link is disabled.

Auto — Fast Link mode is enabled a few seconds after the

interface becomes active.

Point-to-Point Admin Status — Select if a point-to-point links is

established, or permits the device to establish a point-to-point link.

The possible options are:

Enable — Enables the device to establish a point-to-point link, or

specifies for the device to automatically establish a point-to-point

link. To establish communications over a point-to-point link, the

originating PPP first sends Link Control Protocol (LCP) packets

to configure and test the data link. After a link is established and

optional facilities are negotiated as needed by the LCP, the

originating PPP sends

Network Control Protocols (NCP) packets

to select and configure one or more network layer protocols.

When each of the chosen network layer protocols has been

configured, packets from each network layer protocol can be sent

over the link. The link remains configured for communications

until explicit LCP or NCP packets close the link, or until some

external event occurs. This is the actual switch port link type. It

may differ from the administrative state.

Disable — Disables point-to-point link.

Auto — The device automatically establishes a point-to-point

link.

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