Overview
2
The TCP/IP SNMP is supported by the AT-6875. The bridge can be
monitored and manipulated by many SNMP compatible management
stations. Several parameters of the AT 6875 can be managed under SNMP
including custom filtering, static forwarding entries, and STP.
Features
❑
Self-learning MAC layer bridges
❑
Filter at 25,000 PPS
❑
Forward at 12,500 PPS
❑
Two media options per network segment, thin (10BASE2) or AUI
(10BASE5)
❑
Supports up to 2,000 MAC addresses in filter table
❑
IEEE 802.1 revision D Spanning Tree Protocol (STP)
❑
Standalone or rack mount installation
❑
Simple Network Management Protocol (SNMP)
❑
Management Information Base II (MIB II)
❑
One year free software upgrades
❑
One year warranty
Physical Description
The CentreCOM MAC Layer Bridge is packaged in a sturdy two piece
sheet metal enclosure with ventilation slots on the side and back.
All network attachments and power connectors are on the back panel;
status indicators are on the front.
The bridge configuration is controlled by the jumpers on the main board
inside the chassis. The top cover is attached to the main chassis by two
screws on each side.
Front Panel
Six LEDs are on the bridge front panel (see Figure 1), arranged as two
sets. The first set contains two lights which display power and diagnostic
indications. The other set contains four network activity LEDs.
The names of each LEDand their functions are shown below in Table 1.
Figure 1:
AT-6870 Front Panel
Light
Function
PWR
System Power
DIAG
Diagnostic Testing Status
TX1
Channel 1 Transmitting
Table 1:
AT-6870 Front Panel
