Quotes from Chris Bryant

Please make IP Version 6 part of your future studies. Understanding IPv6 is going to be a major boost to your career and your future. Notice that I didn't say "might be a major boost".

Routing – Enhances the environment for IPv4 unicast routing. VLAN – Supports the CAM table's growth to contain the maximum number of unicast MAC addresses. Very important: This template disables hardware routing.

A lot of network admins have put off learning IPv6, which is a huge mistake. Even if it doesn't impact your current career, you're definitely limiting your future prospects if you aren't strong with IPv6 – and you're strengthening your prospects when you are!

Multiplexing is the process of sending multiple data streams simultaneously over a single channel. The data is then "demultiplexed" once it's crossed the channel.

The permit any statement does negate the implicit deny, but watch where you put it in the ACL. If the permit any statement is at the top of any ACL, it doesn't matter how many deny statements follow it. They'll never be read.

OSPF's backbone area is Area 0, and every other area we create must contain a router that has a physical or logical interface in Area 0.