Chapter 1
Introduction
The 9E312-12 is a thirteen port switching module with twelve front panel Ethernet interfaces and one Internal Network Bus (INB) backplane interface. This module uses a Fast Packet Switch (FPS) hardware based switch design and an advanced Intel i960® microprocessor. This microprocessor provides a platform for all management functions within a scalable RISC-Based Architecture.
The module can operate in two modes; as a 12 port Ethernet bridge with a high speed backbone connection or as 12 Ethernet connections to a Cabletron SecureFast™ Packet Switch (SFPS). Each port of the 9E312-12 can be configured to operate in the Full Duplex mode. This configuration allows each port to provide a full 20 Mbps of bandwidth.
Network management information is available through a variety of methods. All information based on SNMP is accessible either via an in-band (Front Panel port), Side Band (SMB-10), or via the EM’s COM ports using a Network Management Server, and Serial Line Interface Protocol (SLIP) or Point-to-Point Protocol (PPP). For more information on the SMB-10, SLIP or PPP refer to the MMAC-Plus Local Management User’s Guide.
The 9E312-12 also features front panel LANVIEW™ Diagnostic LED’s to offer at- a-glance status information about each front panel port as well as the operation of the overall module.
Ethernet networks are connected to the 9E312-12 module using standard Ethernet 10 Base-T RJ-45 connectors on the front panel with connectivity for UTP and STP links up to 100 meters in length.
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