Practice Project_Part 3 So project leader, he wants to find out whether the potential inputs that have been shortlisted are critical or not. He wants to ascertain whether their inputs really affect the percentage of late payments that were translating a few of the payments into defectives or not. So he starts is collecting the data for all the potential inputs. We are going to look into that data set and we are going to mention the results and inferences of the hypothesis testing for each of those inputs. Let…

Practice Project_Part 1 Hello everyone. Welcome to the practice project. Until now we have learned about the various techniques in bits and pieces we have discussed, about the various concepts. We have discussed about the various phases including define phase, measure phase, analyze phase improve and control phase. Now is the time to actually look into a practice project and see how to get started with the defined phase, what kind of techniques can be used from the Measure phase and what kind of techniques can be used in Analyze,…

Anti Spoofing Welcome back. In this lecture we’ll talk about antispoofing. Let’s begin. Before we talk about antispoofing, let’s understand what do we mean by IP Spoofing? So, one method of attempting to gain access to a restricted area of the network is to insert a false source address in the packet header to make the packet appear to come from a trusted source. This technique is called as IP spoofing. IP Spoofing is a very well known attack on networks where you actually spoof the source address. You forward…

Configuring Firewall Filters Welcome back. In this lecture we’ll talk about configuring firewall filters, all those concepts that we discussed in the previous lecture. We are going to apply all of those concepts on a Juno’s device. Let’s begin. Before we get onto a Juno’s device, some quick information on how to apply firewall filters. So, firewall filters can be applied to all interfaces. This will allow you to filter traffic that is entering or exiting the interfaces. They can also be applied to the loopback interface, which is lo…

Policy Chaining Welcome back. In this lecture we’re going to talk about policy chaining. If we have multiple policies consisting of multiple terms, how does the evaluation actually happen? How are the policies interconnected? That is what we’re going to talk about in this lecture. Let’s begin. On the screen right now, I have the illustration of a routing policy, in fact, multiple, multiple routing policies. On the top left hand side, we have a route. If we have an incoming or an outgoing route, how does the route actually…

Prefix List vs. Prefix List Filter Welcome back. In this lecture, we’re going to talk about the difference between prefix list and prefix list filter. Originally, I had planned to talk about route filters in this lecture. However, after the previous lecture on prefix list and prefix list filter, I got a feeling that I might have left you too confused. Which is why I decided let’s do one more lecture on the differences between prefix list and prefix list filter. Hopefully, this one should clear the confusion, if any….

Building Blocks of Routing Policy Welcome back. In this lecture we’ll talk about the building blocks of routing policies. What does a routing policy look like and what is it made up of? That is what we’re going to discuss in this lecture. Let’s begin. All right, so let’s start by talking about the components of a routing policy. All policies are composed of the following components that we configure. Number one, we have match conditions. Number two, we have actions. A combination of actions and match conditions creates what…

Routing Policy Overview Welcome back to this section on routing policies and Firewall filters. In this lecture, we’ll take a look at routing policy overview. Let’s begin. Alright, so what do we mean by routing policies? Routing policies allow you to control the flow of routing information to and from the routing table. This is information that flows between the routing protocols and the routing tables, and also between routing tables and forwarding tables. So essentially, routing policies allow you to control information between the routing protocols and the routing…

OSPF Welcome back. In this lecture, we’ll talk about open shortest path first routing, also known as OSPF routing. Let’s begin. OSPF is an interior gateway protocol designed to be used within an autonomous system. We spoke about autonomous systems in the earlier lecture. An autonomous system is a collection of routers within a common administrative domain. So OSPF is an interior gateway protocol designed to be used within an autonomous system. OSPF uses the concept of link state advertisements, also known as LSAs. Link state advertisements are used to…

Static Routing Welcome back. In this lecture, we’ll talk about static routing. In the last lecture, we looked at a concept called route preference, and now we’ll move on to discussing static and dynamic routing. And we’ll start off by talking about static routing in this lecture. Let’s begin. What do we mean by static routes? Routes that are permanent fixed in the routing and forwarding tables are often configured as static routes. These routes generally do not change and often include only one or very few paths to the…