Problem 1
Why would a network manager benefit from having network management tools? Describe five scenarios.
Problem 1
Consider the two ways in which communication occurs between a managing entity and a managed device: request-response mode and trapping. What are the pros and cons of these two approaches, in terms of (1) overhead, (2) notification time when exceptional events occur, and (3) robustness with respect to lost messages between the managing entity and the device?
Problem 2
In Section \(9.3\) we saw that it was preferable to transport SNMP messages in unreliable UDP datagrams. Why do you think the designers of SNMP chose UDP rather than TCP as the transport protocol of choice for SNMP?
Problem 2
What are the five areas of network management defined by the ISO?
Problem 3
What is the difference between network management and service management?
Problem 4
Define the following terms: managing entity, managed device, management agent, MIB, network management protocol.
Problem 6
Why do you think the length precedes the value in a TLV encoding (rather than the length following the value)?
Problem 6
What is an important difference between a request-response message and a trap message in SNMP?
Problem 7
What are the seven message types used in SNMP?
Problem 10
What is the role of ASN.1 in the ISO/OSI reference model's presentation layer?
