O'Reilly logo

Cisco Networking Essentials by Troy McMillan

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

Describing the Switching Process

As a frame is moved from one interface to another interface, either on a point-to-point link or on a shared medium, the operation occurs at the Network Access layer. Even as a packet is relayed across a network from router to router and eventually to the destination subnet, at each point where it is transferred from the interface of one device (either host NIC to router interface, or router interface to router interface), the transfer is made in terms of MAC addresses, not IP addresses.

This section describes the process by which a packet is placed on the cable by the source device and received by the next interface. First, you will review the relationship between IP addresses and MAC addresses. Then you will ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required