Network Monitoring

Question 1

SNMP

Answer 1

Simple Network Management Protocol:

An SNMP system consists of at least three components:

• SNMP manager – runs specialized software called a network management station. listens on UDP 162 or 10162 (with TLS)
• Managed devices – runs specialized software called agents. listens on UDP 161 or 10161 (with TLS)
• Management information bases – used to categorize the data that can be queried.

Question 2

MIB

Answer 2

SNMP uses management information bases (MIB’s) to categerize the data that can bequeried (and subsequently analyzed).

Question 3

SNMP PDU’s

Answer 3

• Get – used to query and agent
• Response
• Set – an NMS can tell an agent to make changes to the information it queries
• Trap – an agent can solicit information from an NMS