NEI Post 006 – Anatomy of a Cisco voice switchport

This could be considered somewhat of a niche topic but voice vlan/switchports are covered in the CCNA exam, and perhaps more importantly you will deal with this configuration in most Cisco friendly production environments. Relevant CCNA Topics Covered: Interconnecting Cisco Networking Devices Part 1 (100-105) Section 2.4 Most Cisco IP phones have an embedded 3-port…

NEI Post 004 – A bit about 802.1q Trunk ports

What is a trunk port, and how do they help your network? Relevant CCNA Topics Covered: Interconnecting Cisco Networking Devices Part 1 (100-105) Section 2.0 A trunk port is a port that has the ability to switch frames on multiple vlans. Switchports assigned to only one vlan are called access ports, and can be statically assigned…

NEI Post 002 – A Few Basic Cisco Ethernet Concepts

     This post will cover some basics of the IEEE 802.3 Ethernet specification and its application in Cisco gear. My expectation is that you have read or will read the Cisco Press study guides to gain a deeper understanding of some of the underlying technologies that I will reference in this document. Relevant CCNA…