OSPF plan of attack
Read some more OSPF tonight. I’ve decided it’s going to be a LONG road to OSPF supremacy! For the written, I want to know OSPF well, but I’m not looking to learn every little detail so that I spend so much time on it I forget all of the other subjects..make sense? So here’s my [...]
EIGRP done.
Sorry for not staying on top of this thing the last few days! Work, and getting a strange stomach bug made studying difficult, and updating my blog even harder. I am still at it, I assure you all. Here’s my progress in the last few days. Finished IP Forwarding..straightforward Read Chapter 7 (EIGRP) Labbed INE [...]
Chapter 6: IP Forwarding
Read most of chapter 6, which is IP forwarding. It’s all review so far. I’m going to do some verification in the form of labbing some policy routing which is part of this section. I don’t use PBR often, so I won’t lie and say I’m sharp on it right now, but it’s pretty straightforward, [...]
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Those of you “new” to the Cisco world, or those who simply don’t have experience in the layer 2 world may not have heard of errdisable (or simply might refer to it as the proper term, error-disable)- but any seasoned tech knows what a pain it is to check your port and see errdisable. Back [...]
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 [...]
While at a first glance, Frame Relay Traffic Shaping (or FRTS) seems daunting..it’s really not bad. For those of you unfamiliar with FRTS, I’ll present a couple of scenarios where you may need to configure it. High speed interface –> Low speed interface: Picture you have one node connecting to the frame relay cloud at [...]
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 [...]
While reading through my Cisco Press CCIE lab workbook, I came upon a section of the configs that kind of threw me off. The lab asked you to configure RIP to unicast updates without using the neighbor/passive-interface command. For those of you unfamiliar with the “neighbor” way of doing things, here’s how it goes. You [...]
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 [...]
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 [...]
