User manual SMC 6948L2

[. . . ] TigerSwitch 10/100 48-Port Fast Ethernet Switch N N N N N N N N N N N 48 10BASE-T/100BASE-TX ports Optional 100BASE-FX or 1000BASE-SX modules 13. 6 Gbps of aggregate bandwidth Support for redundant power unit Spanning Tree Protocol Up to eight port trunks per switch Port mirroring for non-intrusive analysis QoS support for two-level priority Full support for VLANs with GVRP IP Multicasting with IGMP Snooping Manageable via console, Web, SNMP/RMON Installation Guide SMC6948L2 TigerSwitch 10/100 Installation Guide From SMC's Tiger line of feature-rich workgroup LAN solutions 6 Hughes Irvine, CA 92618 Phone: (949) 707-2400 December 2000 Pub. # F2. 22 150550-102 R01 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. [. . . ] The receptacle labeled "DC Input" is for the optional Redundant Power Unit (RPU). 1-8 ABOUT THE TIGERSWITCH 10/100 Figure 1-7. Power Supply Receptacles Features and Benefits Connectivity N N 48 dual-speed ports for easy Fast Ethernet integration and for protection of your investment in legacy LAN equipment Auto-negotiation enables each RJ-45 port to automatically select the optimum communication mode (half or full duplex) if this feature is supported by the attached device; otherwise the port can be configured manually Independent RJ-45 10BASE-T/100BASE-TX ports with built-in wiring crossovers for straight-through cable connections Unshielded (UTP) cable supported on all RJ-45 ports: Category 3, 4 or 5 for 10 Mbps connections and Category 5 for 100 Mbps connections IEEE 802. 3 Ethernet and 802. 3u Fast Ethernet compliance ensures compatibility with standards-based hubs, network cards and switches from any vendor N N N Expandability N Optional 100BASE-FX fiber module (SC connector) which can connect to a remote site up to 2 kilometers away (at full duplex) Optional 1000BASE-SX Gigabit module that can run up to 550 meters (using 50/125 micron, 500 MHz/km fiber cable), and operates at 1 Gbps, half or full duplex, with auto-negotiation for duplex mode and flow control N 1-9 ABOUT THE TIGERSWITCH 10/100 Performance N N N N N N N N Transparent bridging Aggregate bandwidth up to 13. 6 Gbps Switching Table with 12K MAC address entries Filtering and forwarding at line speed Broadcast storm control Includes support for an optional Redundant Power Unit Desktop or rack-mountable Limited lifetime warranty Management N N "At-a-glance" LEDs for easy troubleshooting Network Management Module: · Supports Telnet, SNMP/RMON and Web-based interface · Module manages entire switch in-band or out-of-band · Spanning Tree Protocol for redundant network connections · VLAN support for 256 groups, port-based or with 802. 1Q VLAN tagging, and GVRP for automatic VLAN learning · Quality of Service (QoS) supports two levels of priority and Weighted Fair Queueing · Multicast Switching based on IGMP (Internet Group Management Protocol) Snooping and Multicast Filtering 1-10 CHAPTER 2 NETWORK PLANNING Introduction to Switching A network switch allows simultaneous transmission of multiple packets via non-crossbar switching. This means that it can partition a network more efficiently than bridges or routers. The switch has, therefore, been recognized as one of the most important building blocks for today's networking technology. When performance bottlenecks are caused by congestion at the network access point (such as the network card for a high-volume file server), the device experiencing congestion (server, power user or hub) can be attached directly to a switched port. And, by using full-duplex mode, the bandwidth of the dedicated segment can be doubled to maximize throughput. When networks are based on repeater (hub) technology, the maximum distance between end stations is limited. For Ethernet, there may be up to four hubs between any pair of stations; for Fast Ethernet, the maximum is two. However, a switch turns the hop count back to zero. So subdividing the network into smaller and more manageable segments, and linking them to the larger network by means of a switch, removes this limitation. A switch can be easily configured in any Ethernet or Fast Ethernet network to significantly boost bandwidth while using conventional cabling and network cards. 2-1 NETWORK PLANNING Sample Applications The TigerSwitch 10/100 is not only designed to segment your network, but also to provide a wide range of options in setting up network connections. Some typical applications are described below. Collapsed Backbone The TigerSwitch 10/100 is an excellent choice for mixed Ethernet and Fast Ethernet installations where significant growth is expected in the near future. You can easily build on this basic configuration, adding direct full-duplex connections to workstations or servers. When the time comes for further expansion, just cascade the TigerSwitch to an Ethernet or Fast Ethernet hub or switch, or link to another workgroup using a Gigabit connection. In the figure below, the TigerSwitch 10/100 is operating as a collapsed backbone for a small LAN. It is providing dedicated 20 Mbps full-duplex connections to workstations and 200 Mbps full-duplex connections to power users and servers. . . . Servers 200 Mbps Full Duplex . . . Workstations 200 Mbps Full Duplex . . . Workstations 20 Mbps Full Duplex Figure 2-1. Collapsed Backbone 2-2 NETWORK PLANNING Central Wiring Closet With up to 52 ports on the switch, the TigerSwitch 10/100 can collapse a complex network down into a single efficient bridged node, increasing overall bandwidth and throughput. In the figure below, the 10BASE-T/100BASE-TX ports on the TigerSwitch are providing 100 Mbps connectivity for up to 48 segments through SMC's TigerStackTM II 10/100 hubs. In addition, the switch is also connecting servers at 200 Mbps. TigerSwitch 10/100 TigerStack II 10/100 Stack Server Farm . . 10/100 Mbps Segments . . . Figure 2-2. Central Wiring Closet . . . 2-3 NETWORK PLANNING Remote Connections with Fiber Cable Fiber optic technology allows for longer cabling than any other media type (up to 2 kilometers for 100 Mbps fiber at full duplex, or up to 550 meters for 1 Gbps fiber). The TigerSwitch can serve as a collapsed backbone, providing direct connectivity for a widespread LAN. [. . . ] Fast Ethernet A 100 Mbps network communication system based on Ethernet and the CSMA/CD access method. 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). 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. [. . . ]