Like what you see? Get it in one document for easy printing!
Click Here!
Use coupon code "certiguide" to save 20%!
(Expires 2004/12/31)

NEW! Network+ N11-003 2005 Beta Exam Study Guide - Just $9!
Get It Here!

Custom Search







Table Of Contents  CertiGuide to Network+
 9  Chapter 0101:  TCP/IP

Previous Topic/Section
TRACERT
Previous Page
Pages in Current Topic/Section
1
Next Page
XIII  New Developments in TCP/IP
Next Topic/Section

XII  Network Monitoring Protocols

We’ve seen TCP/IP utilities and protocols for configuring the network, and troubleshooting problems when they occur. There are also generic (not TCP/IP specific) utilities for monitoring the network, collecting statistics and watching for potential network problems. Typically, these utilities are provided by third-party enterprise utility software vendors, or sometimes network hardware vendors, rather than being included in the operating system as configuration and troubleshooting utilities are.

These third-party utilities primarily use the SNMP and RMON protocols to transmit status requests from a management server to network devices, and replies back from the devices to the management server.

SNMP (Simple Network Management Protocol) was the first protocol designed to communicate between a network management server and devices on a network. Programs using SNMP send out protocol data units (PDU’s) to devices. Each SNMP-compliant device runs an agent, which stores data about itself in a Management Information Base (MIB), and responds to queries from management servers using the information in the MIB. An SNMP management program can set up thresholds for various counters that are kept by an agent, and when a threshold is exceeded, the agent issues a trap that is communicated back to the management program.

SNMP trap

An SNMP trap is generated when an alert threshold is exceeded.

RMON (Remote Monitoring) provides more information about resource use than do most versions of SNMP. It supports multiple types of MIB, compared to SNMP’s one.


SNMP and Rmon Device Support

For devices to be managed by SNMP and Rmon, they must be designed to support those protocols.

For example, smart hubs and switches normally support SNMP, whereas standard hubs usually do not.



Previous Topic/Section
TRACERT
Previous Page
Pages in Current Topic/Section
1
Next Page
XIII  New Developments in TCP/IP
Next Topic/Section

If you find CertiGuide.com useful, please consider making a small Paypal donation to help the site, using one of the buttons below. You can also donate a custom amount using the far right button (not less than $1 please, or PayPal gets most/all of your money!) In lieu of a larger donation, you may wish to consider buying an inexpensive PDF equivalent of the CertiGuide to Network+ from StudyExam4Less.com. (Use coupon code "certiguide" by December 31, 2004 to save 20%!) Thanks for your support!
Donate $2
Donate $5
Donate $10
Donate $20
Donate $30
Donate: $



Home - Table Of Contents - Contact Us

CertiGuide for Network+ (http://www.CertiGuide.com/netplus/) on CertiGuide.com
Version 1.0 - Version Date: November 7, 2004

Adapted with permission from a work created by Tcat Houser and Helen O’Boyle.
CertiGuide.com Version © Copyright 2004 Charles M. Kozierok. All Rights Reserved.
Not responsible for any loss resulting from the use of this site.