Cisco Certified Network Professional CCNP Certifications validate knowledge and skills required to install, configure, and troubleshoot converged local and wide. CCNA Training EIGRP Tutorial. In this article we will mention about the EIGRP protocol. In the past, Enhanced Interior Gateway Routing Protocol EIGRP is a Cisco proprietary routing protocol but from March 2. Cisco opens up EIGRP as an open standard in order to help companies operate in a multi vendor environment. EIGRP is a classless routing protocol, meaning that it sends the subnet mask of its interfaces in routing updates, which use a complex metric based on bandwidth and delay. EIGRP is referred to as a hybrid routing protocol because it has the characteristics of both distance vector and link state protocols but now Cisco refers it as an advanced distance vector protocol. Notice the term hybrid is misleading because EIGRP is not a hybrid between distance vector and link state routing protocols. It is a distance vector routing protocol with enhanced features. EIGRP is a powerful routing protocol and it is really standout from its ancestor IGRP. The main features are listed below Support VLSM and discontiguous networks Use Reliable Transport Protocol RTP to delivery and reception of EIGRP packets Use the best path selection Diffusing Update Algorithm DUAL, guaranteeing loop free paths and backup paths throughout the routing domain Discover neighboring devices using periodic Hello messages to discover and monitor connection status with its neighbors Exchange the full routing table at startup and send partial triggered updates thereafter not full updates like distance vector protocols and the triggered updates are only sent to routers that need the information. This behavior is different from the link state protocol in which an update will be sent to all the link state routers within that area. For example, EIGRP will send updates when a new link comes up or a link becoming unavailable Supports multiple protocols EIGRP can exchange routes for IPv. IPv. 6, Apple. Talk and IPXSPX networks Load balancing EIGRP supports unequal metric load balancing, which allows administrators to better distribute traffic flow in their networks. Notice The term partial means that the update only includes information about the route changes. EIGRP use metrics composed of bandwidth, delay, reliability, and load. By default, EIGRP uses only bandwidth and delay. Your safety is our top priority with quality and specialized equipments we at Aqua Sports Goa put your safety first. SAVE ON ALL NEW CCNP RS 300 Series Products www. CiscoPress. com CCNP CCNP Routing and Switching v2. Complete Video Course Library Specially priced library. In this article we will mention about the EIGRP protocol. In the past, Enhanced Interior Gateway Routing Protocol EIGRP is a Ciscoproprietary routing protocol but. P manuals Ebooks that published today as a guide. Our site has the following Ebook Pdf available for free PDF download. You may find Ebook Pdf document other than just. Curso de Cisco CCNA V 6. Certificao CCNA 200125 O objetivo do Curso preparar o aluno para o exame completo oficial da Cisco CCNA Routing Switching V6. El bosque seco es un ecosistema que se encuentra en zonas tropicales y subtropicales, caracterizado por una estacin seca que dura entre 5 a 6 meses. EIGRP use five types of packets to communicate Hello used to identify neighbors. They are sent as periodic multicasts Update used to advertise routes, only sent as multicasts when something is changed Ack acknowledges receipt of an update. In fact, Ack is Hello packet without data. It is always unicast and uses UDP. Chanel Authenticity Card Serial Number here. Query used to find alternate paths when all paths to a destination have failed Reply is sent in response to query packets to instruct the originator not to recompute the route because feasible successors exist. Reply packets are always unicast to the originator of the query. Ccnp Tshoot Pdf' title='Ccnp Tshoot Pdf' />
Most relevant practice tests for CCNA, CCENT, ICND1, ICND2, CCDA and CCNP exams, free practice tests, router simulations, handson labs. EIGRP sends every Query and Reply message using RTP, so every message is acknowledged using an EIGRP ACK message. EIGRP Route Discovery. Suppose that our network has 2 routers and they are configured to use EIGRP. Lets see what will happen when they are turned on. Firstly, the router will try to establish a neighboring relationships by sending Hello packets to others running EIGRP. The destination IP address is 2. EIGRP. By this way, other routers running EIGRP will receive and proceed these multicast packets. These packets are sent over TCP. After hearing Hello from R1, R2 will respond with another Hello packet. R2 will also send its routing table to R1 by Update packets. Remember that R2 will send its complete routing table for the first time. R1 confirms it has received the Update packet by an ACK message. R1 will also send to R2 all of its routing table for the first time. R2 sends a message saying it has received R1s routing table. Now both R1 R2 learn all the paths of the neighbor and the network is converged. But there are some notices you should know After the network converged, Hello messages will still be sent to indicate that the it is still alive. When something in the network changes, routers will only send partial updates to routers which need that information. Hellos are sent as periodic multicasts and are not acknowledged directly. The first hellos are used to build a list of neighbors thereafter, hellos indicate that the neighbor is still alive. To become a neighbor, the following conditions must be met The router must hear a Hello packet from a neighbor. The EIGRP autonomous system must be the same. K values must be the same. EIGRP builds and maintains three tables Neighbor table lists directly connected routers running EIGRP with which this router has an adjacency Topology table lists all routes learned from each EIGRP neighbor Routing table lists all best routes from the EIGRP topology table and other routing processes. Configuring EIGRP Routerconfigrouter eigrp 1. Syntax router eigrp lt AS number Turn on the EIGRP process. Autonomous System AS number. It can be from 1 to 6. All routers in the same network must use the same AS number. Routerconfig routernetwork 1. Router will turn on EIGRP 1 process on all the interfaces belonging to 1. In the next part we will learn about the Feasible Distance Administrative Distance of EIGRP.