User manual SMC 6824S

[. . . ] TigerStack III 10/100 24-Port Fast Ethernet Switch 24 10BASE-T/100BASE-TX auto MDI/MDI-X ports Optional 1000BASE-X or 100BASE-FX modules Stacks up to 8 units 8. 8 Gbps of aggregate bandwidth Non-blocking switching architecture Spanning Tree Protocol Up to six LACP or static 4-port trunks Port mirroring for non-intrusive analysis Layer 2/3/4 CoS support through four priority queues Full support for VLANs with GVRP IGMP multicast filtering and snooping Manageable via console, Web, SNMP/RMON Installation Guide SMC6824M TigerStack III 10/100 Installation Guide From SMC's Tiger line of feature-rich workgroup LAN solutions 38 Tesla Irvine, CA 92618 Phone: (949) 679-8000 April 2003 Pub. # 150200033400A 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. [. . . ] 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, it is therefore better 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 2-3. Making VLAN Connections Note: When connecting to a switch that does not support IEEE 802. 1Q VLAN tags, use untagged ports. 2-4 CONNECTIVITY RULES Connectivity Rules When adding hubs (repeaters) to your network, please follow the standard connectivity rules for Ethernet, Fast Ethernet, or Gigabit Ethernet. 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 - 5 km (7 - 16404 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 100 km (62. 1 miles) 9/125 micron single-mode N/A fiber (SMF) 2-5 NETWORK PLANNING 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 100BASE-FX 50/125 or 62. 5/125 micron core Multimode multimode fiber (MMF) 100BASE-FX 9/125 micron core single-mode fiber Single-Mode (SMF) 2 km (1. 24 miles) 20 km (12. 43 miles) 2-6 APPLICATION NOTES 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. Avoid using flow control on a port connected to a hub unless it is actually required to solve a problem. Otherwise back pressure jamming signals may degrade overall performance for the segment attached to the hub. As a general rule the length of fiber optic cable for a single switched 100BASE-FX link should not exceed 2 km (1. 24 miles) for multimode fiber or 20 km (2. 43 miles) for single-mode fiber. However, power budget constraints must also be considered when calculating the maximum cable length for your specific environment. 2-7 NETWORK PLANNING 2-8 CHAPTER 3 INSTALLING THE SWITCH Selecting a Site TigerStack III 10/100 units can be mounted in a standard 19-inch equipment rack or on a flat surface. Be sure to follow the guidelines below when choosing a location. The site should: · · be at the center of all the devices you want to link and near a power outlet. be able to maintain its temperature within 0° to 50° C (32 to 122° F) and its humidity within 10% to 90%, non-condensing provide adequate space (approximately two inches) on all sides for proper air flow be accessible for installing, cabling and maintaining the devices allow the status LEDs to be clearly visible · · · Make sure twisted-pair cable is always routed away from power lines, fluorescent lighting fixtures and other sources of electrical interference, such as radios, transmitters, etc. Make sure that a separate grounded power outlet that provides 100 to 240 VAC, 50 to 60 Hz, is within 2. 44 m (8 feet) of each device and is powered from an independent circuit breaker. As with any equipment, using a filter or surge suppressor is recommended. 3-1 INSTALLING THE SWITCH Equipment Checklist After unpacking the TigerStack III 10/100, check the contents to be sure you have received all the components. Then, before beginning the installation, be sure you have all other necessary installation equipment. Package Contents TigerStack III 10/100 unit, SMC6824M Four adhesive foot pads Bracket Mounting Kit containing two brackets and four screws for attaching the brackets to the switch Power Cord--either US, Continental Europe or UK RS-232 console cable This Installation Guide Management Guide SMC Warranty Registration Card--be sure to complete and return to SMC Optional Rack-Mounting Equipment If you plan to rack-mount the switch, be sure to have the following equipment available: Four mounting screws for each device you plan to install in a rack--these are not included A screwdriver (Phillips or flathead, depending on the type of screws used) 3-2 MOUNTING Mounting A TigerStack III 10/100 unit can be mounted in a standard 19-inch equipment rack or on a desktop or shelf. Mounting instructions for each type of site follow. Installing Optional Modules: Before mounting the switch, be sure you install any optional modules. If you have purchased optional slide-in 1000BASE-T, 100BASE-FX, or 1000BASE-X (GBIC) media expansion modules, install these modules now, following the instructions "Installing an Optional Module into the Switch" on page 3-4. . Rack Mounting Before rack mounting the switch, pay particular attention to the following factors: Temperature: Since the temperature within a rack assembly may be higher than the ambient room temperature, check that the rack-environment temperature is within the specified operating temperature range. [. . . ] 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. [. . . ]