3.4 Store-and-Forward
Store-and-Forward is one type of packet-forwarding techniques.
A Store-and Forward Gigabit Ethernet Switch stores the incoming
frame in an internal buffer, do the complete error checking
before transmission. Therefore, no error packets occurrence, it is
the best choice when a network needs efciency and stability.
The Gigabit Ethernet Switch scans the destination address from
the packet-header, searches the routing table provided for the
incoming port and forwards the packet, only if required. The
fast forwarding makes the switch attractive for connecting
servers directly to the network, thereby increasing throughput
and availability. However, the switch is most commonly used to
segment existing hubs, which nearly always improves overall
performance. An Ethernet Switching can be easily congured
in any Ethernet network environment to signicantly boost
bandwidth using conventional cabling and adapters.
Due to the learning function of the Gigabit Ethernet Switch,
the source address and corresponding port number of each
incoming and outgoing packet are stored in a routing table.
This information is subsequently used to lter packets whose
destination address is on the same segment as the source
address. This connes network trafc to its respective domain,
reducing the overall load on the network.
The Gigabit Ethernet Switch performs “Store and Forward"
therefore, no error packets occur. More reliably, it reduces the
re-transmission rate. No packet loss will occur.
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