Реферат: CMIP Vs SNMP Network Management Essay

CMIP Vs. SNMP : Network Management Essay, Research Paper

CMIP vs. SNMP : Network Management

Imagine yourself as a network administrator, responsible for a 2000 user

network. This network reaches from California to New York, and some branches

over seas. In this situation, anything can, and usually does go wrong, but it

would be your job as a system administrator to resolve the problem with it

arises as quickly as possible. The last thing you would want is for your boss

to call you up, asking why you haven’t done anything to fix the 2 major systems

that have been down for several hours. How do you explain to him that you

didn’t even know about it? Would you even want to tell him that? So now,

picture yourself in the same situation, only this time, you were using a network

monitoring program. Sitting in front of a large screen displaying a map of the

world, leaning back gently in your chair. A gentle warning tone sounds, and

looking at your display, you see that California is now glowing a soft red in

color, in place of the green glow just moments before. You select the state of

California, and it zooms in for a closer look. You see a network diagram

overview of all the computers your company has within California. Two systems

are flashing, with an X on top of them indicating that they are experiencing

problems. Tagging the two systems, you press enter, and with a flash, the screen

displays all the statitics of the two systems, including anything they might

have in common causing the problem. Seeing that both systems are linked to the

same card of a network switch, you pick up the phone and give that branch office

a call, notifying them not only that they have a problem, but how to fix it as

well.

Early in the days of computers, a central computer (called a mainframe) was

connected to a bunch of dumb terminals using a standard copper wire. Not much

thought was put into how this was done because there was only one way to do it:

they were either connected, or they weren’t. Figure 1 shows a diagram of these

early systems. If something went wrong with this type of system, it was fairly

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