Allied Telesis AlliedView-EMS 4.0.2 Device-Manager - Manual (Page 24)

AlliedView™-EMS 4.0.2 Device Management Guide Page 24 of 441
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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
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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.
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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.
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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.
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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