ccna
QoS: Essentials, Part III
In the previous installment of this series (QoS: Essentials, Part II), we discussed types of marking, NBAR, and Congestion management/queuing techniques. With part III, I intend on discussing Traffic shaping /policing, Congestion avoidance, and link efficiency mechanisms. Because of the sheer amount of information in QoS, I cannot cover all of the QoS spectrum, but I hope to instill [...]
The effects of Uplinkfast
Uplinkfast. How many of you can honestly say you’ve used it? Some of you? Most of you? Ok, well I guess I am the minority! I have seen spanning-tree uplinkfast used in configs, but never took the time to really understand the effects of it. The idea is simple enough. You have an access layer [...]
Why I think you should be studying right now
This post is somewhat of a tangent, but I hope the message is well-received, and that it hits home for some of you out there. I believe there are two types of CCIE candidates: Those who are born with the gift of retaining information, or otherwise smart- or those who make up for their lack [...]
Command of the week: Switchport protected
I have done my share of work in the networking field, and had never heard of this command. I have also not been exposed to a wide variety of layer 2 technologies, but I must say, that this is a very cool command. Granted, it could be considered old- or not on par with private VLAN’s [...]
Random Frame Relay/Lab thoughts
Alright, this isn’t a straight tech article, but I just wanted to post showing that I’ve made progress. I finished 100% of IEWB Vol I frame relay labs three times now, the first using help and looking up articles to get things straight, and the last two with no outside help, just trying to make [...]
QoS: Essentials, Part II
In QoS: Essentials, Part I, we discussed what QoS is, classifying/marking traffic, and trust boundaries. In Part II, we will get into the actual types of marking, do an overview of NBAR, and finally get into Congestion management/Queuing. Ready? Types of Marking: There are several different ways to mark, and each one is suited for [...]
QoS: Essentials, Part I
Many of you reading this have been mystifyed by terms like WFQ, WRED, Jitter, or DiffServ. My aim in Part I of QoS: Essentials, is to take some of the mystique surrounding Quality of Service away. Let’s get to it! What is QoS? While in Iraq, we stayed in tiny trailers with 2 soldiers sharing [...]
