Summary:You've got to know the details of trunks and trunking protocols to earn your CCNA and CCNP.  Learn these details from Chris Bryant, CCIE #12933. Keywords:cisco, ccna, ccnp, bcmsn, trunking, vlan, native, isl, ieee, dot1q, encapsulation, header, exam Article Body:To earn your CCNA or CCNP certification, you've got to understand the basics of trunking.  This isn't just a CCNA...