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Allied Telesis AlliedView-EMS 4.0.3 Device-Management User Manual

Page 25

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AlliedView™-EMS 4.0.3 Device Management Guide

Page 25 of 468

Expansion Module Notes

Device Manager cannot distinguish between the AT-A45/xx, AT-A47,

and AT-STACKM expansion modules. All are displayed with the same GIF image.

When both the AT-A45 and AT-A46 expansion modules are present on a device,
the AT-A45 port image may show up as green and its Port Speed parameter may

reflect the value "1 Gbps" even if there is no connection established on the port.

To reflect the correct port image color and port speed, restart the device.

This applies to the following devices:

ƒ

AT-8016F/xx

ƒ

AT-8024M

ƒ

AT-8088/xx

The Spanning Tree Protocol (STP) does not work for the AT-A46 expansion module

when it is installed on an AT-8016F/ST device. As a result, the Port State parameter

of the AT-A46 expansion module port will never be set to 'blocking' and the port

image will never turn yellow.

Connection between an AT-A47 expansion module port that is configured to

operate at 1Gbps full duplex and a port on another device can only be established

if the port on the other device is configured to auto-negotiate.

For the AT-A47 expansion module, Device Manager will only display the

AT-A45/AT-A47/AT-STACKM shared GIF image if a GBIC module is present
in the GBIC slot.

By default, the Port Speed and Mode parameter of the AT-A47 expansion module

port is set to 'auto sense'. From this mode, the Port Speed and Mode can only be

changed to '1Gbps full-duplex'. However, once set to '1Gbps full-duplex', it can no

longer be set to 'auto sense'.

AT-8000 Series