thinQmaster Virtual testing partner Adaptive practice exams that find your weak spots and drill them. Every answer explained. From $69
Enroll

thinQmaster

Find your exam

Five questions free, before you decide.

Step 1 · choose a vendor

In one of our camps? Your practice exams come with the tuition — they are on your study page already.

Networking Fundamentals · Intermediate

SNMP Trap

An unsolicited message an SNMP agent sends to a manager on UDP 162 when a significant event occurs.

Definition

Traps report events such as link down, reboot or threshold crossings without waiting for polling. Traps are unacknowledged, while informs are acknowledged and retransmitted.

Example

A switch sends a linkDown trap when a port fails.

Exam tip

Traps = agent pushes to manager on UDP 162; polling = manager pulls on 161.

Related terms