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Essential SNMP by Kevin Schmidt, Douglas Mauro

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Chapter 3. NMS Architectures

Now that you understand the basic concepts behind how management stations (NMSs) and agents communicate, it’s time to introduce the concept of a network-management architecture. Before rushing out to deploy SNMP management, you owe it to yourself to put some effort into developing a coherent plan. If you simply drop NMS software on a few of your favorite desktop machines, you’re likely to end up with something that doesn’t work very well. By NMS architecture, we mean a plan that helps you use NMSs effectively to manage your network. A key component of network management is selecting the proper hardware (i.e., an appropriate platform on which to run your NMS) and making sure that your management stations are located in such a way that they can observe the devices on your network effectively.

Hardware Considerations

Managing a reasonably large network requires an NMS with substantial computing power. In today’s complex networked environments, networks can range in size from a few nodes to thousands of nodes. The process of polling and receiving traps from hundreds or thousands of managed entities can be taxing on the best of hardware. Your NMS vendor will be able to help you determine what kind of hardware is appropriate for managing your network. Most vendors have formulas for determining how much RAM you will need to achieve the level of performance you want, given the requirements of your network. It usually boils down to the number of devices ...

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