Flashcards in Chapter 12 - Network Management Deck (47)
What is network management?
network management is the process of operating, maintaining, and controlling the network
Without a well-planned approach, most network management becomes ____________ rather than _____________.
reactive rather than proactive
What are the four main functions of network management?
- configuration management
- performance and fault management
- end user support
- cost management
Low level managers must have _____ freedom to implement their own policies and procedures
True of False: there is increased pressure to merge the voice and data functions (which are traditionally held separate)
What are the two primary goals of configuration management?
- managing the network's hardware and software configuration
- documenting the network configuration
What are two main tasks of configuration management concerning client computers?
- adding and deleting user accounts
- adding and updating software on networked computers
Many organizations use desktop management systems as part of their configuration management efforts. What is a desktop management system?
a desktop management system allows management of networked computers from a central console.
- used to push software to networked computers.
- allows for inventory and audit of software
- produces reports such as user logon
- increased short term costs but long term savings
draw the desktop management system diagram
documenting configuration involves information about what four things?
- network hardware
- network software
- user and application profiles
- network documentation
documenting configuration: describe network hardware documentation
- uses network configuration diagrams
- identifies the number, type and placement of network circuits
- identifies the number, type and placement of clients, servers, switches and routers
documentation must be available for all components within the network. List some documentation details
- type of device
- asset tag number
- vendor, model, serial number
- date of purchase
- warranty information
- repair history
- repair contact information
List some standard software documentation
- which operating system and version is on each server
- what application software and version is on each client or server
- this information can help to negotiate site licenses and maintaining legal software requirements
describe User application profiles
documentation must be maintained for each user or application that can access resources on the network
True or False: User application profiles must provide bi-directional information.
What Network documentation should be maintained?
1. Documentation for performance and fault management
2. Documentation for End User Support
3. Documentation for Cost Management
4. Legal Requirements Documentation
5. Network documentation for software, hardware, vendor contracts licenses
Why is it important to have documentation in place?
Otherwise it is all in someone’s head and is lost when that person leaves the organization.
What is the difference between performance management and fault management?
Performance Management - Ensuring the network is operating efficiently
Fault Management - Preventing, detecting, and correcting faults
What is network monitoring?
Use of network management software to collect operational statistics
Name 2 types of parameters that should be monitored.
1.Physical network parameters
- Operational status of ports and devices
- Device CPU load
2. Logical network parameters
- Show the level of service provided by the network
- User response times
- Traffic volume on specific circuits
- Destination address of data
What's the difference between active and passive monitoring?
Active monitoring - System sends test messages to monitored servers or applications and measures response times, throughput, & jitter
Passive monitoring - Device software simply collects statistics, NMS grabs statistics when needed, NMS does not initiate any action that creates stats
Why is performance tracking of networks important?
It allows network managers to be proactive, managers can engage problems before users complain and plan for future needs
What is fault management?
- Devices monitor and report their status such as traffic flow, raising alarms when problem detected or threshold crossed, helps detect and pinpoint problem early before it becomes critical
- A statistical report is made for each device showing number of failures and amount of resources used
What are the 4 main uses of trouble tickets?
1. Problem tracking
2. Problem statistics
3. Problem prioritization
4. Management reports
With regards to trouble tickets, what is problem tracking?
1. Allows manager to know who is responsible for correcting outstanding problems
2. Allows searching of information regarding specific problem
3. Allows determination of timeliness in problem solving
4. Assists in problem resolution
With regards to trouble tickets, what is are problem Statistics?
1. Allows manager to see how well network is meeting needs of end users
2. Can tell if vendors are meeting contractual maintenance agreements
3. Can help determine whether problem-solving objectives are being met
With regards to trouble tickets, what is problem prioritization?
- Problems are assigned both a severity and a priority
- Gives statistics on resolution times of problems vs. severity
With regards to trouble tickets, what are management reports?
Fault management software can generate sophisticated reports on problems and their resolutions to determine network availability, product and vendor reliability, and vendor responsiveness.
what is a Trouble Log?
- Data kept by Fault Management software system
- Records problems and their state of resolution
- Records statistics associated with the problems
- Data will be useful input to any future redesign of network