Allied-telesis AT-MCF2300 Bedienungsanleitung PDF herunterladen (Seite 40)

Chapter 3: AT-MCF2012LC, AT-MCF2012LC/1 and AT-MCF2032SP Modules

40 Section I: Features

Guidelines to

Using the

Channel

Operating Modes

Here are the guidelines to using the channel operating modes:

❒ The channels on a module can be set to different operating modes.

❒ The operating modes do not block or interfere with the flow of traffic

between the two ports of a channel during normal network operations.

❒ The MissingLink mode is intended for situations where the devices

that are connected to the ports of a channel are able to react to the

loss of a link by performing a specific action, such as sending out

SNMP traps.

❒ Allied Telesis does not recommend using the Smart MissingLink mode

on a channel that is connected to managed devices. As explained in

“Smart MissingLink Mode” on page 39, this mode responds to the loss

of a link on a port in a channel by pulsing the transmitter of the

companion port. A pulsing transmitter may cause problems for a

managed device.

❒ The Link Test and Smart MissingLink modes are particularly useful

after a link failure on a channel port because they allow you to use the

Link LEDs to determine whether or not the ports have established links

with their network devices.

❒ You set the operating modes of the channels with the Mode button as

explained in “Mode Button” on page 51 or with the optional

AT-MCF2000M Management Module.

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Allied-telesis AT-MCF2300 Bedienungsanleitung Seite 40