LevelOne GSW-1601TX, GSW-2401TX Switch Operation, Address Table, Learning, Forwarding & Filtering

Page 35

Switch Operation

Address Table

The LevelOne 16/24 Port 10/100/1000Mbps Switch with Gigabit option is implemented with an address table. This address table composed of many entries. Each entry is used to store the address information of some node in network, including MAC address, port no, etc. This information comes from the learning process of Ethernet Switch..

Learning

When one packet comes in from any port. The LevelOne 16/24 Port 10/100/1000Mbps Switch with Gigabit option will record the source address, port no. and the other related information in address table. This information will be used to decide either forwarding or filtering for future packets.

Forwarding & Filtering

When one packet comes from some port of the Ethernet Switching, it will also check the destination address besides the source address learning. The Ethernet Switching will lookup the address-table for the destination address. If not found, this packet will be forwarded to all the other ports except the port which this packet comes in. And these ports will transmit this packet to the network it connected. If found, and the destination address is located at different port from this packet comes in, the Ethernet Switching will forward this packet to the port where this destination address is located according to the information from 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

29

Page 34 Page 36
Image 35
Page 34 Page 36
Contents Vision FCC Class a Appliance Contents Troubleshooting Package List Page Features Page Port 10/100Mbps Switch front panel Port 10/100Mbps Switch with Gigabit option24Port 10/100Mbps Switch with Gigabit option Twisted-Pair Ports AC Power ConnectorConnecting End node or Hub or Switch LED IndicatorsReset Switch Power LED Connecting to Network Backbone or ServerTX Activity Link/ Speed LEDLabel L10/ L100/ L1000 Full/ Half Duplex and Collision LEDHyper Terminal Connect to PC RS-232 serial cableMain Menu Speed Mode Page Address Learn Vlan Type ‘S’ or ‘s’ than input ‘2’ ,press Enter Select c Please Wait Queues Priority Trunk Type ‘A’ or ‘a’ three times to assigned trunk port member SelectType ‘E’ or ‘e’ return to main menu Input ‘1’ and press Enter Uplink PortType ‘C’ or ‘c’ to continue Select 16-P 10/100M + 2-P 1GCOOPER Module ver3.12 UpLink Group 2 ,assigned ports Monitor Port Type ‘E’ or ‘e’ back to main menu View Configuration Restore To Factory Default Forwarding & Filtering Switch OperationAddress Table LearningAuto-Negotiation Store-and-ForwardSolution TroubleshootingEchnical Specifications RJ-45 Connector pin assignment RJ-45 P in Specification
Top Page Image Contents