User manual SMC 8612T2

[. . . ] TigerSwitch 10/100/1000 Gigabit Ethernet Switch 12 auto-MDI/MDI-X 10/100/1000BASE-T ports 4 ports shared with 4 SFP transceiver slots Non-blocking switching architecture Support for a redundant power unit Spanning Tree Protocol Up to six LACP or static 4-port trunks Layer 2/3/4 CoS support through four priority queues Full support for VLANs with GVRP IGMP multicast filtering and snooping Support for jumbo frames up to 9 KB Manageable via console, Web, SNMP/RMON Installation Guide SMC8612T2 TigerSwitch 10/100/1000 Installation Guide From SMC's Tiger line of feature-rich workgroup LAN solutions 38 Tesla Irvine, CA 92618 Phone: (949) 679-8000 May 2005 Pub. # 150000018600H 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. [. . . ] Collapsed Backbone 2-2 APPLICATION EXAMPLES Central Wiring Closet With 12 parallel bridging ports (i. e. , 12 distinct collision domains), this switch can collapse a complex network down into a single efficient bridged node, increasing overall bandwidth and throughput. In the figure below, the 1000BASE-T RJ-45 ports on the switch are providing 2 Gbps full-duplex connections for up to 12 local segments. In addition, the switch is also connecting remote servers over fiber optic cable at 2 Gbps. 10/100/1000 Switch Server Farm 10/100 Mbps Segments . . . . . . Figure 2-2. Central Wiring Closet 2-3 NETWORK PLANNING Remote Connection with Fiber Cable Fiber optic technology allows for longer cabling than any other media type. A 1000BASE-LX SFP transceiver link can connect to a site up to 5 km away. This allows the Gigabit Ethernet switch to serve as a collapsed backbone, providing direct connectivity for a widespread LAN. A Gigabit SFP transceiver can also be used for a high-speed connection between floors in the same building, or to connect to other buildings in a campus setting. The figure below illustrates a Gigabit Ethernet switch connecting multiple segments with fiber cable. . Headquarters 1000BASE-SX MMF (500 m) Server Farm Remote Switch 25 26 1 2 3 4 5 6 13 14 15 16 17 18 Link Act Console Power 7 8 9 Self Test 10 11 12 Fan Status 19 20 21 22 23 24 Link Act 25 26 1 2 3 4 5 6 13 14 15 16 17 18 Link Act 1000BASE-LX SMF (5 kilometers) Remote Switch 1 25 26 2 3 4 5 6 13 14 15 16 17 18 1 25 26 2 3 4 5 6 13 14 15 16 17 18 7 8 9 10 11 12 19 20 21 22 23 24 Power Console 7 8 9 Self Test 10 11 12 Fan Status 19 20 21 22 23 24 Link Act Fault Reset Clear Fault Reset Clear 7 8 9 10 11 12 19 20 21 22 23 24 10/100 Mbps Segments . . . . . . Figure 2-3. Remote Connection with Fiber Cable 2-4 APPLICATION EXAMPLES Making VLAN Connections VLANs can be based on port groups, or each data frame can be explicitly tagged to identify the VLAN group it belongs to. When using port-based VLANs, ports can be assigned to one or more groups. Port-based VLANs are suitable for small networks. A single switch can be easily configured to support several VLAN groups for various organizational entities (such as Finance and Marketing). When you expand port-based VLANs across several switches, you need to make a separate connection for each VLAN group. This approach is, however, inconsistent with the Spanning Tree Protocol, which can easily segregate ports that belong to the same VLAN. When VLANs cross separate switches, you need to use VLAN tagging. This allows you to assign multiple VLAN groups to the "trunk" ports (that is, tagged ports) connecting different switches. R&D VLAN 1 Tagged Ports Untagged Ports VLAN unaware switch R&D Tagged Port VLAN aware switch Finance VLAN 2 Testing Marketing Finance Testing VLAN 3 VLAN 4 VLAN 3 VLAN 1 VLAN 2 Figure 2-4. Making VLAN Connections Note: When connecting to a switch that does not support IEEE 802. 1Q VLAN tags, use untagged ports. 2-5 NETWORK PLANNING Connectivity Rules When adding hubs (repeaters) to your network, please follow the connectivity rules listed below for these products. However, note that because switches break up the path for connected devices into separate collision domains, you should not include the switch or connected cabling in your calculations for cascade length involving other devices. 1000 Mbps Gigabit Ethernet Collision Domain Maximum Fiber Optic Cable Distance for 1000BASE-SX Fiber Size 62. 5/125 micron 50/125 micron Fiber Bandwidth 160 MHz/km 200 MHz/km 400 MHz/km 500 MHz/km Maximum Cable Length 2-220 m (7-722 ft) 2-275 m (7-902 ft) 2-500 m (7-1641 ft) 2-550 m (7-1805 ft) Maximum Fiber Optic Cable Distance for 1000BASE-LX Fiber Size 9/125 micron Fiber Bandwidth N/A Maximum Cable Length 2 m - 10 km (7 - 32808 ft) Maximum Cable Distance for 1000BASE-T Type Cat. 5, 5e, or 6 100-ohm UTP Connector RJ-45 Maximum Cable Length 100 m (328 ft) Maximum 1000BASE-ZX Fiber Optic Cable Distance Fiber Diameter Fiber Bandwidth Cable Length Range 70* - 100 km (43. 5 - 62. 1 miles) 9/125 micron single-mode N/A fiber (SMF) * For link spans exceeding 70 km, you may need to use premium single mode fiber or dispersion shifted single mode fiber. 2-6 CONNECTIVITY RULES 10/100 Mbps Ethernet Collision Domain Maximum 10/100 Mbps Ethernet Cable Distance Type 10BASE-T Cable Type Twisted Pair, Category 3 or better Max. Cable Length 100 m (328 ft) 100BASE-TX Category 5 or better 100-ohm UTP or 100 m (328 ft) STP 2-7 NETWORK PLANNING Application Notes 1. Full-duplex operation only applies to point-to-point access (such as when a switch is attached to a workstation, server or another switch). When the switch is connected to a hub, both devices must operate in half-duplex mode. [. . . ] Fast Ethernet Switch Device that provides a full 100 Mbps bandwidth (or either 10 or 100 Mbps bandwidth with Auto-Negotiation) to each port (LAN segment). Glossary-2 Full Duplex Transmission method that allows switch and network card to transmit and receive concurrently, effectively doubling the bandwidth of that link. Gigabit Ethernet A 1000 Mbps network communication system based on Ethernet and the CSMA/CD access method. IEEE 802. 3 Defines carrier sense multiple access with collision detection (CSMA/CD) access method and physical layer specifications. IEEE 802. 3ab Defines CSMA/CD access method and physical layer specifications for 1000BASE-T Gigabit Ethernet. [. . . ]