Identify one network component from the marketplace that could be implemented in the LAN of a midsized business. Describe the component's purpose and functionality, a viable source of supply, available support from the manufacturer of from other third party sources, and cost. A network component could be anything as common as a managed switch to something as sophisticated as a network Intrusion Detection System.

Note: Document should follow APA style. Length not less than 500 words. You must incorporate other sources.