1-1
Chapter 1
Introduction
The 9E423-24 (Figure 1-1) is a 25 port switching module. Two RJ-71 Telco
connectors support 24 10BASE-T ports with the 25th port connecting to the
Internal Network Bus (INB) backplane interface. This module uses a SmartSwitch
ASIC 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 24 port Ethernet traditional switch
(using 802.1d standards) with a high speed backbone connection or as a Secure
Fast Switch (SFS) with 24 Ethernet connections. Each port of the 9E423-24 can be
configured to operate in the Full Duplex mode. This configuration allows each
port to provide a full 20 Mbps of bandwidth for file servers or high end user
intensive work stations.
Network management information is available through a variety of methods. All
information based on Simple Network Management Protocol (SNMP) is
accessible either via an in-band (Front Panel port), Side Band (SMB-10), or via the
Environmental Module’s COM ports. Serial Line Internet Protocol (SLIP) or
Point-to-Point Protocol (PPP) are supported by the Environmental Module’s
COM ports. For more information on the SMB-10, SLIP or PPP refer to the
MMAC-Plus Local Management User’s Guide.
The 9E423-24 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 9E423-24 module through two standard
RJ-71 Telco connectors built in the front of the module. Each connector provides
12 Ethernet 10BASE-T connections for UTP and STP links up to 100 meters long.
