Cabletron Systems SmartSwitch 9000, Руководство пользователя

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Chapter 1
Introduction
The 9H423-26 (Figure 1-1) is a switching module with twenty-six 100 Mbps
Ethernet ports. The module is configured with two RJ21 connectors (Category 5
rated), providing twenty-four ports, and two multimode fiber SC connectors.
Each module also provides an additional port that connects directly 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.
This module can operate in two modes: either as a 26-port Ethernet traditional
switch (using 802.1d standards) with a high speed backbone connection, or as a
SecureFast switch (SFS) with 26 Ethernet connections. Each port can be
configured to operate in the full duplex mode. This configuration allows each
100BASE-T port to provide a full 200 Mbps. The 100BASE-T ports can operate in
either half or full duplex mode. The fiber ports operate only in full duplex mode
and operate only at 100 Mbps.
The 9H423-26 module is specifically designed for use in the wiring closet. A
typical configuration would have clients connected to the module (via the RJ21
connectors) and servers located in data centers connected via the 100 Mbps fiber
uplink.
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) is supported by the Environmental Module’s COM
ports. For more information on the SMB-10, SLIP or PPP refer to the
SmartSwitch
9000 Local Management User’s Guide .
The 9H423-26 also features front panel LANVIEW™ Diagnostic LEDs to offer at-
a-glance status information about each front panel port as well as the operation of
the overall module.