User manual SMC 6826MPE

[. . . ] TigerStack III 10/100 24-Port Fast Ethernet Switch 24 auto-MDI/MDI-X 10BASE-T/100BASE-TX ports 10BASE-T/100BASE-TX ports support PoE capabilities 2 Gigabit combo ports (RJ-45/SFP) 8. 8 Gbps of aggregate bandwidth Stacks up to 8 units Non-blocking switching architecture Spanning Tree Protocol, RSTP, and MSTP Up to six LACP or static 4-port trunks RADIUS and TACACS+ authentication Rate limiting for bandwidth management CoS support for four-level priority Full support for VLANs with GVRP IP Multicasting with IGMP Snooping Manageable via console, Web, SNMP/RMON Installation Guide SMC6826MPE 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 June 2005 Pub. # 150200037700A 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. [. . . ] VLANs can be based on untagged port groups, or traffic can be explicitly tagged to identify the VLAN group to which it belongs. Untagged VLANs can be used for small networks attached to a single switch. However, tagged VLANs should be used for larger networks, and all the VLANs assigned to the inter-switch links. The switch also supports multiple spanning trees which allow VLANs groups to maintain a more stable path between all VLAN members. This can reduce the overall amount of protocol traffic crossing the network, and provide a shorter reconfiguration time when any link in the spanning tree fails. R&D 1 1 2 3 4 5 6 7 8 9 10 11 12 11 13 13 14 15 16 17 18 19 20 21 22 23 24 23 VLAN 1 Tagged Ports 25 Console 26 Link/Act PoE 25 26 Pwr Diag RPS Stack Mode PoE /Link 2 12 14 24 Untagged Ports VLAN unaware switch Tagged Port VLAN aware switch R&D 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. 2-6 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 link should not exceed: · 1000BASE-SX: 550 m (1805 ft) using multimode fiber · 1000BASE-LX: 5 km (3. 2 miles) using single-mode fiber · 1000BASE-LH: 70 km (43. 5 miles) using single-mode fiber · 100BASE-FX: 20 km (12. 43 miles) using single-mode fiber · 100BASE-FX: 2 km (1. 24 miles) using multimode 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 Switch 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 5% to 95%, 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 LED indicators to be clearly visible · Make sure that twisted-pair cable is always routed away from power lines, fluorescent lighting fixtures and other sources of electrical interference, such as radios and transmitters. Make sure that the unit is connected to a separate grounded power outlet that: - provides 100 to 240 VAC, 50 to 60 Hz - is within 2 m (6. 6 feet) of each device - is powered from an independent circuit breaker · 3-1 INSTALLING THE SWITCH · As with any equipment, using a filter or surge suppressor is recommended. Ethernet Cabling To ensure proper operation when installing the switch into a network, make sure that the current cables are suitable for 10BASE-T or 100BASE-TX operation. Check the following criteria against the current installation of your network: · Cable type: Unshielded twisted pair (UTP) or shielded twisted pair (STP) cables with RJ-45 connectors; Category 3 or better for 10BASE-T and Category 5 or better for 100BASE-TX and 1000BASE-T connections. Protection from radio frequency interference emissions Electrical surge suppression Separation of electrical wires (switch related or other) and electromagnetic fields from data based network wiring Safe connections with no damaged cables, connectors or shields RJ-45 Connector · · · · Figure 3-1 RJ-45 Connections 3-2 EQUIPMENT CHECKLIST Equipment Checklist After unpacking this switch, check the contents to be that sure you have received all the components. Then, before beginning the installation, be sure that you have all other necessary installation equipment. Package Contents · · · · · · · 24-Port Fast Ethernet PoE Switch AC power cord Owner registration card Serial cable Rack mounting kit This Installation Guide Installation and Management Guide CD Note: An optional stacking connector and cable is also available. 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) 3-3 INSTALLING THE SWITCH Mounting This switch can be mounted in a standard 19-inch equipment rack or on a desktop or shelf. Mounting instructions for each type of site follow. 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. (See page C-2. ) Mechanical Loading: Do not place any equipment on top of a rack-mounted unit. Circuit Overloading: Be sure that the supply circuit to the rack assembly is not overloaded. Grounding: Rack-mounted equipment should be properly grounded. Particular attention should be given to supply connections other than direct connections to the mains. · · · To rack-mount devices: 1. [. . . ] 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. (Now incorporated in IEEE 802. 3-2002. ) IEEE 802. 3af (PoE) An IEEE standard for providing Power over Ethernet (PoE) capabilities. When Ethernet is passed over copper cable, two twisted pairs are used for data transfer, and two twisted pairs are unused. [. . . ]