Routing PDF
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Polytechnic University of the Philippines
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This document provides notes on routing, including static, dynamic, RIP, EIGRP, and OSPF. It also describes default routing. The notes are from the Polytechnic University of the Philippines.
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Routing Agenda Types of Routing Static Dynamic o RIP o EIGRP o OSPF Default Route Types of Routing Static Routing Adding routes to the routing table manually. Types of Routing https://itexamanswers.net/lab-106-configuring-routing.html Types of Routing Dynamic Routing mak...
Routing Agenda Types of Routing Static Dynamic o RIP o EIGRP o OSPF Default Route Types of Routing Static Routing Adding routes to the routing table manually. Types of Routing https://itexamanswers.net/lab-106-configuring-routing.html Types of Routing Dynamic Routing makes automatic adjustments of the routes according to the current state of the route in the routing table. Dynamic Routing - RIP RIP stands for Routing Information Protocol - uses hop count as the metric to rate the value of different routes. A directly connected network has a metric of zero; support up to 15 hops. Dynamic Routing - EIGRP https://itexamanswers.net/lab-107-configuring-rip-routing.html Dynamic Routing - EIGRP Enhanced Gateway Routing Protocol (EIGRP) - It is the Cisco-proprietary protocol. It uses three separate tables called Routing table, Topology table, and Neighbor table. Supports 100 hops Sends partial update when the state destination changes for bandwidth optimization Network discovery mechanism Since the path through Router Three is three hops, and the path through Router One is two hops, Router Two chooses the path through One and discards the information it learned through Three. If the path between Router One and Network A goes down, Router Two loses all connectivity with this destination until it times out the route of its routing table (three update periods, or 90 seconds), and Router Three re-advertises the route (which occurs every 30 seconds in RIP). With any hold-down time not included, it takes between 90 and 120 seconds for Router Two to switch the path from Router One Source: Cisco to Router Three. Types of Routing - EIGRP https://itexamanswers.net/lab-108-configuring-eigrp-routing.html Dynamic Routing - OSPF stands for Open Standard Path First. Uses shortest path first algorithm to build and calculate the shortest path to all destinations. Any change in routing information is flooded to all routers in the network. It supports unlimited number of hops and typically used for large networks such as Internet. Backbone Area Area Area boundary boundary router router Backbone Internal Internal Routers Routers Routers Source: networkustad.com Dynamic Routing - OSPF Link state advertisement (LSA) - message that communicates the router's local routing topology to all other local routers in the same OSPF area. OSPF router maintains a Link state database (LSDB) which the router stores the received LSA packets. Dynamic Routing - OSPF https://itexamanswers.net/lab-109-configuring-ospf-routing.html Type of Routing Default Routing is a routing technique in which a router is configured to transmit packets to a default route that is, a gateway or next hop device if no specific path is defined or found. It is commonly used when the network has single exit point. The IP Router has the following address as the default route : 0.0.0.0/0 Type of Routing R1(config)#ip route 0.0.0.0 0.0.0.0 10.0.0.2