Cabletron Systems TRFMIM 28 TRFMIM-28 User Manual

Also see for SmartSwitch 9000: Reference guide Appendix Appendix Appendix User guide

1-1Chapter 1IntroductionThe 9H423-28 (Figure 1-1) is a switching module with twenty-four 10 MbpsEthernet ports and four 100 Mbs Fast Ethernet ports. The module is configuredwith two RJ21 connectors, two RJ45 connectors, two ST fiber connectors and a slotfor an FEPIM. The two RJ21 connectors provide twenty-four 10 Mbps Ethernetports. The RJ45 connectors, ST connectors and FEPIM (the module supports eitherthe FE-100TX or the FE-100FX) provide the four 100 Mbps Ethernet ports. The twoST connectors represent a single port, as one connector is for transmit and one isfor receive. Each module also provides an additional port that connects directly tothe Internal Network Bus (INB) backplane interface. This module uses aSmartSwitch ASIC design and an advanced Intel i960® microprocessor. Thismicroprocessor provides a platform for all management functions within ascalable RISC-Based Architecture.This module can operate in two modes: either as a 28-port Ethernet traditionalswitch (using 802.1d standards) with a high speed backbone connection, or as aSecure Fast Switch (SFS) with 28 Ethernet connections. Each port can beconfigured to operate in the Full Duplex mode. This configuration allows each10BASE-T port to provide a full 20 Mbps of bandwidth and the 100BASE-T portsto provide 200 Mbps of bandwidth. The fiber ports on this module operate only inFull Duplex mode.Network management information is available through a variety of methods. Allinformation based on Simple Network Management Protocol (SNMP) isaccessible either via an in-band (Front Panel port), Side Band (SMB-10), or via theEnvironmental Module’s COM ports. Serial Line Internet Protocol (SLIP) orPoint-to-Point Protocol (PPP) is supported by the Environmental Module’s COMports. For more information on the SMB-10, SLIP, or PPP, refer to the SmartSwitch9000 Local Management User’s Guide.The 9H423-28 also features front panel LANVIEW™ Diagnostic LED’s to offer at-a-glance status information about each front panel port, as well as the operationof the overall module.