Planet ISW-621 [25/28] Auto negotiation

Therefore, no error packets occurrence, it is the best choice when a

network needs efciency and stability.

The Industrial Fast 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 congured in any Ethernet network environment to signicantly

boost bandwidth using conventional cabling and adapters.

Due to the learning function of the Industrial Fast 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 connes network trafc to

its respective domain, reducing the overall load on the network.

The Industrial Fast Ethernet Switch performs “Store-and-Forward"

therefore, no error packets occur. More reliably, it reduces the re-

transmission rate. No packet loss will occur.

4.5 Auto-negotiation

The STP ports on the Industrial Fast 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.