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Figure 1-23: SNTP
6.3.10
SNMP
SNMP (Simple Network Management Protocol) is a troubleshooting and
management protocol, which uses the UDP protocol on port 161 to
communicate between clients and servers. SNMP uses a manager MIB
(management information base) agent solution to fulfill the network
management needs. The agent is a separate station that can request data
from an SNMP agent in each of the different managed system in the network.
The agent uses the MIBs as dictionaries of manageable objects. Each SNMP-
managed device has at least one agent that can respond to the queries from
the NMS. The SNMP agent supports GETS, SETS, and TRAPS for 4 groups
with MIB-II: System, Interface, IP, and ICMP. The SNMP agent supports
three-community names authentication. See Fig 24.