Allied Telesis AT-GS2002 Series, Installation Manual

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AT-GS2002 Series Installation Guide
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A Few Basics about Ethernet Switching
A Gigabit Bridging Converter interconnects network devices, such as
workstations, printers, routers, and other Ethernet switches, so that they
can communicate with each other by sending and receiving Ethernet
frames.
MAC Address Table
The operation of the bridging converter’s MAC address table reduces the
amount of unnecessary traffic by not forwarding packets with a
destination address that has been learned on the same port.
Store and Forward
The bridging converter supports store and forward switching at Gigabit
Ethernet full-wire speed in 100 Mbps, half- or full-duplex mode. Packets
entering each port are stored in buffers. Once the full packet is received,
the bridging converter will forward or discard the packet, depending on its
destination address and error status. This ensures the only error-free
packets destined for another segment will be transferred across the
bridging converter, reducing network load.
The bridging converter will discard CRC errors, misaligned, runt, and
under-oversized packets. When the packet has dribble bits at the end, the
bridging converter will truncate to octet boundary and check for a good
FCS before forwarding.