Summary:To pass the CCNP, you've got to know the details of each layer of Cisco's three-layer networking model.  Learn these important details from Chris Bryant, CCIE #12933. Keywords:cisco, ccnp, exam, certification, bcmsn, core, layer, three, model, networking, switch, pass, ccie Article Body:In this section, you're going to be reintroduced to a networking model you first saw in your...