Accton Technology SwitcHub-2se Installation Manual

Contents

Accton Technology SwitcHub-2se Installation Manual Manual pdf 14 page image

Fast SwitcHub-2se User’s Guide1-4 Introductionon the current error rate. These switching alternatives start at standard cut-through for a clean data environment, change to fragment-free cut-through for amoderate error rate, and then progress to store-and-forward for a highlycontentious environment. By using this method, the Fast SwitcHub-2sedelivers the best networking performance under any environment.Features of the Fast SwitcHub-2se• Conforms to the IEEE 802.3 and IEEE 802.3u specifications, as well as10BASE-T, 100BASE-TX and 100BASE-FX standards• Provides one independent RJ-45 10BASE-T / 100BASE-TX Ethernet stationport, where each logical port consists of 1 MDI port (for connection to hubsor switches) and 1 MDI-X port (for connection to workstations or servers),eliminating the need for crossover cables• Provides one independent 100BASE-FX port with Rx/Tx jacks(SC or ST type connectors can be used, depending on the model you purchase)• Both ports support full-duplex and half-duplex operation• Total bandwidth of up to 200 Mbps (when full-duplex mode is used)• RJ-45 port auto-senses transmission speed (10/100 Mbps)• Uses adaptive cut-through switching (which dynamically changes amongstandard cut-through, fragment free cut-through, and store-and-forwarddepending on the error rate)• Uses back pressure to eliminate frame loss by “blocking” traffic from endstations or segments connected directly to the switch when its buffers fill• Minimum latency of packet transmission (leading edge to leading edge) lessthan 20 microseconds when using cut-through switching• Uses “on the fly” cut-through technique to transport packets