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Snmp messages, Figure 8-1 – Sun Microsystems Sun Fire X4150 User Manual

Page 107

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Chapter 8

Using Simple Network Management Protocol

91

FIGURE 8-1

Sun Server MIB Tree

SNMP Messages

SNMP is a protocol, not an operating system, so you need some type of application
to use SNMP messages. Your SNMP management software might provide this
functionality, or you can use an open-source tool like net-SNMP, which is available
at

http://net-snmp.sourceforge.net/

Both management stations and agents use SNMP messages to communicate.
Management stations can send and receive information. Agents can respond to
requests and send unsolicited messages in the form of a trap. There are five
functions that management stations and agent, use:

Get

GetNext

GetResponse

Set

Trap

By default, port 161 is used for SNMP messages, and port 162 is used to listen for
SNMP traps.