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User Guide 1038
SNMPConfiguring SNMP & RMON
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RFC2620-RADIUS-Acc-Client.mib
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RFC2674-pBridge.mib
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RFC2674-qBridge.mib
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RFC2863-pBridge.mib
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RFC2925-Disman-Ping.mib
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RFC2925-Disman-Traceroute.mib
For detail information about the supported public MIBs, see Supported Public MIBs for TP-
Link Switches.
SNMP Entity
An SNMP entity is a device running the SNMP protocol. Both the SNMP manager and SNMP
agent are SNMP entities.
SNMP Engine
An SNMP engine is a part of the SNMP entity. Every SNMP entity has one and only
one engine. An SNMP engine provides services for sending and receiving messages,
authenticating and encrypting messages, and controlling access to managed objects.
An SNMP engine can be uniquely identified by an engine ID within an administrative domain.
Since there is a one-to-one association between SNMP engines and SNMP entities, we
can also use the engine ID to uniquely identify the SNMP entity within that administrative
domain.
Notification Types
Notifications are messages that the switch sends to the NMS host when important events
occur. Notifications facilitate the monitoring and management of the NMS. There are two
types of notifications:
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Trap: When the NMS host receives a Trap message, it will not send a response to
the switch. Thus the switch cannot tell whether a message is received or not, and the
messages that are not received will not be resent.
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Inform: When the NMS host receives an Inform message, it sends a response to the
switch. If the switch does not receive any response within the timeout interval, it will
resend the Inform message. Therefore, Inform is more reliable than Trap.
SNMP Version
The device supports three SNMP versions with the security level from low to high: SNMPv1,
SNMPv2c and SNMPv3. Table 1-1 lists features supported by different SNMP versions, and
Table 1-2 shows corresponding application scenarios.
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