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Chapter 4: Switch Operation
information from the address table. But, if the destination address is located at the
same port with this packet comes in, then this packet will be filtered. Thereby
increasing the network throughput and availability.
Store-and-Forward
Store-and-Forward is one type of packet-forwarding techniques. A Store-and-
Forward Industrial 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 efficiency and stability.
The Industrial 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 configured in any Ethernet network environment to significantly boost
bandwidth using conventional cabling and adapters.
Due to the learning function of the Industrial 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 filter packets
whose destination address is on the same segment as the source address. This
confines network traffic to its respective domain, reducing the overall load on the
network.
The Industrial 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.
Auto-negotiation
The STP ports on the Industrial Gigabit Ethernet Switch have built-in "Auto-
negotiation". This technology automatically sets the best possible bandwidth when a
connection is established with another network device (usually at Power On or Reset).
This is done by detect the modes and speeds at the second of both device is
connected and capable of, both 10Base-T and 100Base-TX devices can connect with
the port in either Half- or Full-Duplex mode.
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GE-DSG-8 DSGH-5 and 8 Ethernet Switch User Manual
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