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T3 OVERVIEW
A T3 provides the same bandwidth as 28 T1s. Typically, leasing a T3
line costs the same as eight to ten T1s. Using the MX2800, a single
T3 can provide internet connectivity and voice (local and long
distance) to individual sites across up to 28 individual DSX-1s. T3 is
also extremely cost effective for backhauling local and long
distance voice.
SNMP
The MX2800's embedded SNMP feature allows the unit to be
accessed and controlled by a network manager through the
10BaseT local area network (LAN) port. The MX2800 supports the
MIB-II standard, RFC 1213, and the ADTRAN Enterprise Specific
MIB.
MIB files are available from ADTRAN in the support section of the
ADTRAN Web page at www.adtran.com.
The term SNMP broadly refers to the message protocols used to
exchange information between the network management system
(NMS) and the managed devices, as well as to the structure of
device management databases. SNMP has three basic components,
the network manager, the agent, and the MIB.
Network Manager
The network manager is a set of control programs that collect,
control, and present data pertinent to the operation of the network
devices. These programs reside on a network management station.
Agent
The agent is a control program that resides in every network
device. This program responds to queries and commands from the
network manager, returns requested information or invokes
configuration changes initiated by the manager, and sends
unsolicited traps to the manager.
61200290L1-1
MX2800 User Manual
Chapter 1. Introduction
1-3
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