What are some drawbacks to ICMP piinging as a NM tool?
Unreliable delivery of packets, need for polling, limited info derived from responses.
What is MIB?
A hierarchical, strctured format that defines the NM information available for the network devices.
What are the 2 parts of the labeled node?
An object identifier (OID), short text description
What are the two types of nodes that make up the MIB tree?
Labeled nodes may have subordinate labeled nodes and/or leaf nodes, leaf nodes will never have subordinate. Labeled-word notation(understand what label is pointed to), Leaf-deciman notation(how the NMS tracks info)
What are some examples of what a nose in SNMP can rep?
any device (client, user, pc, server, printer) attached to a data network
Briefly describe the two categories of SNMP
Manager- A computer used to run one or more NMS applications, Agent-responsible for monitoring, collecting, and reporting mgmt data to the mgmt system.
What does the GET operation do?
retrieves the value of one specific instance of management information
what does the set operation do?
modifies the value of one or more instances of management information. Can create new instances and delete existing instances of management information
What is a trap?
Trap is the 4th operation message. unsolicited message from an agent to the manager, does not have a corresponding request message
What are community names?
each snmp community is a group containing one agent and one mgmt system. The logical name assigned to such a group we call the community name
Describe each of the two types of community names
Read-community that is read only, Write-community that allows the manager to remotely change configuration information from the mgmt station or server.
What do the two hierarchies provided by the CIM describe?
Physical hierarchies describe real world components, logical hierarchies are visible through network protocols
What are the three methods for creating a representation of a network topology within the domain managers repository?
Auto-discovery, manual discovery, topology import
What are the 3 main components of SMARTS?
Domain manager, broker, clients
List the 5 different map types that can be accessed through the map console
physical connectivity, ip network connectivity, ip network membership, vlan connectivity, vlan membership
What is the primary console in smarts and what does it display?
Monitoring console; it is used to display the reqults of the domain managers correlation alarms
Briefly describe the differences between the two types of polling used by smarts to gather information
fault and performance data is collected using SNMP while device connectivity is monitored using CMP
What two factors determine if a SMARTS map is opened with r/w or r/o access?
only one user can have a specific map opened with r/w access at any one time. You can use file system (FAT or NTFS) to purposely allow specific users to r/w or r/o access to a map by setting permission to the files
What are the 3 types of notifications used in smarts
problem, compound event, symptomatic event
List eight of the objects that can be tracked through the windows perf monitor