User manual SMC 8500SX

[. . . ] SMC8506T · · · · · 10/100/1000 Gigabit Copper Switch 6 10/100/1000 RJ-45 Ports with 1 expansion bay 2 port 1000Base-TX or 2 port 1000SX modules Auto MDI/MDIX on all ports Half- and full-duplex flow control "Smart Function" features: 24K MAC Address Table Port-based VLAN and L2 Trunking Password Authentification Port Mirroring Desktop and rack mountable Installation Guide SMC8506T EZ Switch 1000 User Guide From SMC's EZ line of low-cost workgroup LAN solutions 6 Hughes Irvine, CA 92618 Phone: (949) 707-2400 Copyright Information furnished by SMC Networks, Inc. (SMC) is believed to be accurate and reliable. However, no responsibility is assumed by SMC for its use, nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of SMC. [. . . ] 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 increasing the network throughput and availability Store-and-Forward Store-and-Forward is one type of packet-forwarding techniques. A Store-and Forward Ethernet Switching 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 Ethernet Switch scans the destination address from the packetheader, 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. A 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 Ethernet switching, 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 Giga Switch performs "Store and forward" therefore, no error packets occur. More reliably, it reduces the re-transmission rate. Auto-Negotiation The STP ports on the gigabit 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 10BaseT and 100Base-TX devices can connect with the port in either Half- or Full-Duplex mode. [. . . ] SEGMENTABLE STACK Stackable Hubs capable fo subdividing the LAN into separate collision domains. SERVER A computer that is on the network and shares resources with other network users. The server may be dedicated, which means that its sole purpose is to provide service for network users, or it may be used as a client. SHARED PORTS Ports that are on the same collision domain and share a fixed bandwidth. [. . . ]