ADC Campus-REX2 RS, User Manual

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Chapter 8 - Internetworking and Management Overview
132 Campus-REX2 RS Interface Card User Manual
M
ANAGEMENT
P
ROTOCOLS
SNMP is used for remote configuration of system and bridge parameters,
monitoring statistics, and performing advanced management. FTP is used for
the Campus-REX2 to download system software code.
SNMP
This messaging protocol specifies how to send information between a
Network Management Station (NMS) or Element Management System
(EMS) and managed devices on a network.
SNMP Functions
Managed devices (such as the Campus-REX2) have agent software or
firmware that interprets SNMP requests and responds to them. The EMS
communicates with the agents in the managed devices to:
• set configuration options
• read configuration information
• read status parameters
A Management Information Base (MIB) defines these configuration and
status parameters (see
“MIB and Trap Support” on page 133 ). The Internet
Engineering Task Force (IETF) specifies standard MIBs for certain types of
devices, ensuring that any NMS can manage them. Additionally, vendors can
issue proprietary MIBs for their devices that provide higher management
functionality.
Campus-REX2 SNMP Agent
An agent is software or firmware code resident in managed devices (such as
the Campus-REX2, modems, nodes, routers and hubs). Agents translate data
on remote networks into code the EMS can read. The EMS uses SNMP as the
transport mechanism to communicate with an agent. SNMP uses the standard
Internet Protocol (IP) to transport incoming and outgoing messages to the
appropriate agent or NMS address. Each SNMP command requires an IP
address or NMS from the agent to transport these messages.