Tugas CCNA 4 Lab 2.5.3 Investigating Network Monitoring Software

Lab 2.5.3 Investigating Network Monitoring Software

Step 1: SNMP overview

Simple Network Management Protocol is a common network management protocol. The protocol enables network administrators to gather data about the network and corresponding devices. SNMP management system software is available in tools such as CiscoWorks. SNMP management agent software is often embedded in operating systems on servers, routers, and switches. SNMP has four main components:

• • Management station
• • Management agents
• • Management Information Base (MIB)
• • Network management protocol

Descriptions of SNMP are available at:

http://www.cisco.com/univercd/cc/td/doc/cisintwk/ito_doc/snmp.htm

http://www.protocols.com/pbook/tcpip9.htm#SNMP

As part of a network management system, SNMP tools can respond to network errors or failures in several ways. Generally, when a network fault occurs, or when predefined thresholds are met; the SNMP tools can react by:

• • Sending an alert on the network
• • Sending a message to a pager
• • Sending an email to an administrator

The FilmCompany is required to maintain a specified level of network service to meet its StadiumCompany contract obligations. They need to purchase network management software that enables them to monitor and manage the new upgraded network.

Step 2: Search for SNMP monitoring programs

1. Using a computer with Internet access, use a web browser to search for examples of SNMP monitoring programs. Use search terms such as:

• SNMP reporting
• SNMP notification
• SNMP monitoring

1. List other appropriate search term
2. Note and compare the features of a number of the monitoring programs found.

Step 3: Example SNMP program

An example SNMP monitoring program is Plixer Denika v7.

1. Go to the website for this program at http://www.plixer.com/products/denika.php.
2. List the type of reports that this program can generate.
3. Read the details for each type of report. Select the report type that would be most applicable to ensure a problem with the performance of the link carrying real time video data from the StadiumCompany to FilmCompany was addressed as soon as possible.

Step 4: Reflection

Consider and discuss the organizational or business support necessary to make best use of network monitoring programs with event-triggered notification features.

Jawaban:

The event thresholds and conditions that trigger notifications must be set so that unnecessary notifications are not sent, but critical conditions are reported and notification is sent.

Company employees who are notified must be both technically capable of resolving the issue and available to do so when notified. This will require the company to ensure that staff is trained in the response processes, in the technical skills, and in troubleshooting and problem solving. Employee rosters and task allocation need to consider these issues.