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CompTIA Network N10-006 Quick Reference by Anthony Sequeira

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Chapter 14. Implementing Switches

Managed switches, which make Layer 2 switching possible in high-speed Ethernet networks, are critical in a corporate infrastructure. This chapter examines several features that are used with Layer 2 switches.

VLAN (Virtual Local Area Network)—This can be used to separate a group of computing devices from each other, even if those devices are on the same physical switch. A VLAN provides isolation among networking devices. Another name for a VLAN is a Layer 2 broadcast domain. Typically, each VLAN is associated with a separate and unique IP subnetwork address. VLANs are controlled and implemented on the Layer 2 switches. Individual switch ports are assigned as access ports associated with a specific VLAN. The default ...

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