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ExpWave 240B Secure Outdoor Ethernet Radio Link
SNMP Configuration 10-1
Chapter 10 SNMP Configuration
This chapter explains SNMP configuration menu 22.
SNMP is only available if TCP/IP is configured.
10.1 About SNMP
Simple Network Management Protocol is a protocol used for exchanging management information between network
devices. SNMP is a member of the TCP/IP protocol suite. Your ExpWave supports SNMP agent functionality, which
allows a manager station to manage and monitor the ExpWave through the network. The ExpWave supports SNMP
version one (SNMPv1). The next figure illustrates an SNMP management operation. SNMP is only available if TCP/IP
is configured.
Figure 10-1 SNMP Management Model
An SNMP managed network consists of two main types of component: agents and a manager.
An agent is a management software module that resides in a managed device (the ExpWave). An agent translates
the local management information from the managed device into a form compatible with SNMP. The manager is the
console through which network administrators perform network management functions. It executes applications that
control and monitor managed devices.
The managed devices contain object variables/managed objects that define each piece of information to be collected
about a device. Examples of variables include such as number of packets received, node port status etc. A
Management Information Base (MIB) is a collection of managed objects. SNMP allows a manager and agents to
communicate for the purpose of accessing these objects.
SNMP itself is a simple request/response protocol based on the manager/agent model. The manager issues a
request and the agent returns responses using the following protocol operations:
• Get - Allows the manager to retrieve an object variable from the agent.
• GetNext - Allows the manager to retrieve the next object variable from a table or list within an agent. In SNMPv1,
when a manager wants to retrieve all elements of a table from an agent, it initiates a Get operation, followed by a
series of GetNext operations.