Today is about cisco certification, Article practice exam on eigrp and route redistribution, And I'm going to throw a little ospf in there just to keep things interesting as well. I do want to mention that in this particular article practice, Exam I've already configured route redistribution, So we're not just going to go over the answers, But I'll be able to show you the answers on live, Cisco, Routers and switches. The 10 minute time limit on the articles on youtube really precludes us from configuring route redistribution step-by-step. Here, However, I do have a three-part series on route redistribution on EveDumps and, If you're reading this on the Bulldog blog at the bryant advantage blogspot com, I will put those three articles right below this one.
So while you'll see route redistribution after it's been configured in this article, You can then read that three-part series for free, Of course, And then actually see it done step by step. Let's tackle the first question, Though, In today's practice, Exam name the reliable and unreliable eigrp packet types, All important types, But I'll give you another hint 3 or considered reliable and two are considered unreliable. Let's add for question 3, Which of these statements best describes what you'll see when you run the show IP eigrp topology command. Will you see the successors the feasible successor is both or neither question 4? Can you ever have multiple successors for a single given route? I mean: is it even, Is it even possible and if so, Why is it possible, Which statement best describes the scenario and, As always, Pause the article? If you need a few extra seconds but we'll move to question five, So we have plenty of time to be on the live equipment. You'Ve injected ospf routes into an eigrp autonomous system with the redistribute ospf one command.
What will the adb once those routes are redistributed into eigrp, For we better know what that ad is and what it what it does? Let's get back to question one here and the reliable and unreliable eigrp packet types I'm going to bring up the live equipment here and I believe we've already run, Show IP eigrp topology and we'll be coming back to that in just a moment. But these three packet types update, Query and reply: those are your reliable packet types and s and acknowledgments or acts while certainly important to a eigrp operation. We can't operate eigrp without s. T are considered unreliable question 3.
What can we see when we weren't when we run show IP eigrp topology? Well, Let's bring that live equipment right back up and you can see that we will see both successors and feasible successors, Because here on router one, You can see the path to this particular Network and this particular network as well. It mentions two successors, But you've got three routes. You know, And here are the next hops - be a 123 313 dot 3 and 1 23 2. So I've got three different ways to get there, But two of these paths are considered successors, So you will see successors and feasible successors in the topology table.
It's when you run the route table which we'll do in just a moment that you will only see successor routes. Speaking of that, Can you even have multiple successors for a single route? Certainly you can - and we just saw that in action, But we've got three choices here that all begin with. Yes, So we better make sure we get the right one.
You don't need to use the variants command to have multiple successors. You will have them by default. If the metrics happen to be exactly the same and let's bring the live equipment back up - and you can see for each of these two networks where we have two successors but three overall legal routes to get there loop free routes, You can see that the metric For the first two is exactly the same: that's why t are multiple successors. Here, The metric is exactly the same. The metric here for the feasible successor is a little bit higher than that of the successor routes and there is no such thing as the multiple success or condition in D.
I just made that up. Let's go on to question five, Then, With this redistribution scenario, You've put ospf routes into an eigrp AFS with redistributed ospf one. What will the administrative distance be for you ceasing eight candidates you're not going to be doing much actual route redistribution, But this is still a very good value for you to know and of course, You NP candidates you're going to be doing route redistribution. So, Let's bring the routers back up and I'll show you first off on router to. Let me see if I've actually need to do a quick right there. No, Here's the redistribute command that I used on router to to put these routes into ospf, And you can excuse me in the eigrp and you can see that I used redistribute ospf there now.
I want to go over the router three and the reason I'm doing this is to show you that over here, I used a redistribute connected command to put the locally connected routes into eigrp. Router one is an eigrp neighbor of both routers two and three, And the reason I did that two different ways is to show you that, Regardless of how the routes were redistributed into eigrp, Whether it be from another dynamic routing protocol or whether it be just the Connected routes t're going to show up the same way in the routing table, And that is marked with d and e ex. That is the key. It's d and e ex and you can see, As we know, The first number in these brackets is always the administrative distance.
So when you redistribute routes into eigrp, T are then considered external eigrp routes and t're going to have an administrative distance of 170 again head over to the Bulldog blog at the meringue to vonage blogspot com see that three-part series on route redistribution. It's definitely worth reading for both CCNA and ccnp candidates, Thanks for taking the time to read this article.
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