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Overview
Network
Management
Module
22
Table 1 Port and System Status LEDs (Continued)
LED
Condition
Mode Select
FLOW
ON
DUP
ON
ACT
ON
Module Ports
STATUS
ON
ACT
Flashing
1. Use the Mode Select button to select LED display mode.
The top expansion slot on the rear panel of the switch is for the optional
AT-BMGMT Management Module (Figure 3). This module can manage
the switch or the attached stack. It offers a variety of management
options, including SNMP, RMON and a Web-based interface. This
module also includes an RS-232 port for out-of-band management. This
is an RS-232 serial port with a DB-9 connector. A PC may be connected to
this port for configuration and monitoring purposes out-of band via a
full-handshaking null modem cable. You can also make a remote
connection to this port via modems. This allows you to access the
out-of-band interface, or to establish a network connection using SLIP
protocol. (See Appendix A for a description of wiring options.)
Figure 3 Optional AT-BMGMT Management Module
Status
The port Mode LEDs are indicating the status of
flow control for each port.
The port Mode LEDs are indicating the duplex
mode of each port.
The port Mode LEDs are indicating the status of
traffic on each port.
A module is installed in the slot.
Traffic is passing through the port.
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