I have been running some QoS tests lately and wanted to share some of my results. Some of this behavior is described in various documentation guides but it’s not really clearly described in one place. I’ll describe what I have
CCDE – Firewall And IPS Design Considerations
Introduction This post will discuss different design options for deploying firewalls and Intrusion Prevention Systems (IPS) and how firewalls can be used in the data center. Firewall Designs Firewalls have traditionally been used to protect inside resources from being accessed
Network Simulation – Cisco VIRL Increases Node Count
Great news everyone. Some of you might have seen that I created a petition to increase the node limit in VIRL. I know there have been discussions within Cisco about the node limit and surely our petition wasn’t the single
CCDE – Load Balancer Designs
Introduction This post will describe different load balancer designs, the pros and cons of the designs and how they affect the forwarding of packets. Load Sharing Vs Load Balancing The terms load sharing and load balancing often get intermixed. An
CCNA – Operation Of IP Data Networks 1.5
We move on to the next topic which is 1.5 Predict the data flow between two hosts across a network This is a very important topic for the CCNA. It may feel a bit overwhelming at first to grasp all
CCNA – Operation Of IP Data Networks 1.4
It’s time for the next topic for the CCNA. 1.4 Describe the purpose and basic operation of the protocols in the OSI and TCP/IP models There are tons of books written on the OSI and TCP/IP model so I won’t
CCDE – Optical Design Considerations
Introduction As a network architect you should not have to know all the details of the physical and data link layer. What you need to know though is how different transports can support the topology that you are looking to
CCNA – Operation of IP Data Networks 1.3
We move on to the next topic: 1.3 Identify common applications and their impact on the network When you work in networking, it’s important to have an understanding of how applications work and what are their characteristics. Is it sensitive
CCNA – Operation of IP Data Networks 1.2
The next topic for CCNA is: 1.2 Select the components required to meet a given network specification I wish the blueprint would have been a bit clearer on what they mean with this topic but it’s reasonable to think that
CCNA – Operation of IP Data Networks 1.1
We kick off the CCNA series from the beginning. Operation of IP data networks is weighted as 5% in the CCNA RS blueprint. The first topic is: 1.1 Recognize the purpose and functions of various network devices such as routers,