Allied Telesis AT-S63 User Manual
Page 467
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AT-S63 Management Software Menus Interface User’s Guide
Section III: VLANs
467
Another difference with this mode is that the uplink port is untagged.
Consequently, you would use this mode when the device connected to
the uplink port is not IEEE 802.1Q compatible, meaning that the device
cannot handle tagged packets.
Note
When the uplink port receives a packet with a destination MAC
address that is not in the MAC address table, the port broadcasts the
packet to all switch ports. This can result in ports receiving packets
that are not intended for them.
Also note that a switch operating in this mode can be remotely
managed through any port on the switch, not just the uplink port.
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