Prologue to Dynamic Routing Protocol

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Prologue to Dynamic Steering Convention. Directing Conventions and Ideas

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Prologue to Dynamic Routing Protocol Routing Protocols and Concepts – Chapter 3

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Objectives Describe the part of element directing conventions and place these conventions with regards to present day organize outline. Distinguish a few approaches to group directing conventions. Portray how measurements are utilized by directing conventions and distinguish the metric sorts utilized by element steering conventions. Decide the authoritative separation of a course and portray its significance in the steering procedure. Distinguish the diverse components of the directing table.

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Dynamic Routing Protocols Function(s) of Dynamic Routing Protocols: Dynamically share data between switches. Naturally refresh directing table when topology changes. Decide best way to a goal.

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Dynamic Routing Protocols The motivation behind an element steering convention is to: Discover remote systems Maintaining a la mode directing data Choosing the best way to goal systems Ability to locate another best way if the present way is no longer accessible

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Dynamic Routing Protocols Components of a steering convention Algorithm For the situation of a steering convention calculations are utilized for encouraging steering data and best way assurance Routing convention messages These are messages for finding neighbors and trade of steering data

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Dynamic Routing Protocols Advantages of static directing It can reinforcement different interfaces/arranges on a switch Easy to design No additional assets are required More secure Disadvantages of static directing Network changes require manual reconfiguration Does not scale well in expansive topologies

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Classifying Routing Protocols Dynamic steering conventions are gathered by attributes . Illustrations include: RIP IGRP EIGRP OSPF IS-IS BGP Autonomous System is a gathering of switches under the control of a solitary expert.

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Classifying Routing Protocols Types of steering conventions : Interior Gateway Protocols (IGP) Exterior Gateway Protocols (EGP)

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Classifying Routing Protocols Interior Gateway Routing Protocols (IGP) Used for steering inside a self-ruling framework & used to course inside the individual systems themselves Examples: RIP, EIGRP, OSPF Exterior Routing Protocols (EGP) Used for directing between self-sufficient frameworks Example: BGPv4

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Classifying Routing Protocols IGP: Comparison of Distance Vector & Link State Routing Protocols Distance vector Routes are publicized as vectors of remove & bearing Incomplete perspective of system topology Generally, occasional updates Link state Complete perspective of system topology is made Updates are not intermittent

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Classifying Routing Protocols

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Classifying Routing Protocols Classful directing conventions Do NOT send subnet cover in steering refreshes Classless steering conventions Do send subnet veil in directing updates

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Classifying Routing Protocols Convergence is characterized as when all switches' steering tables are at a condition of consistency

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Routing Protocols Metrics Metric An esteem utilized by a steering convention to figure out which courses are superior to others

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Routing Protocols Metrics utilized as a part of IP steering conventions Bandwidth Cost Delay Hop check Load Reliability

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Routing Protocols Metrics The Metric Field in the Routing Table Metric utilized for each directing convention RIP - bounce tally IGRP & EIGRP - Bandwidth (utilized of course), Delay (utilized of course), Load , Reliability IS-IS & OSPF - Cost , Bandwidth (Cisco's usage)

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Routing Protocols Metrics Load adjusting This is the capacity of a switch to disperse parcels among various same cost ways

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Administrative Distance of a Route Purpose of a metric It's an ascertained esteem used to decide the best way to a goal Purpose of A dministrative D istance It's a numeric esteem that indicates the inclination of a specific course

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Administrative Distance of a Route Identifying the A dministrative D istance (AD) in a directing table It is the main number in the sections in the steering table

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Administrative Distance of a Route Dynamic Routing Protocols

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Administrative Distance of a Route Directly associated courses Have a default AD of 0 Static Routes Administrative separation of a static course has a default estimation of 1

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Administrative Distance of a Route Directly associated courses Immediately show up in the directing table when the interface is designed

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Summary Dynamic directing conventions satisfy the accompanying capacities Dynamically share data between switches Automatically refresh steering table when topology changes Determine best way to a goal Routing conventions are gathered as either Interior portal conventions (IGP) Or Exterior passage protocols(EGP) Types of IGPs incorporate Classless steering conventions - these conventions incorporate subnet cover in steering refreshes Classful steering conventions - these conventions do exclude subnet cover in directing refresh

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Summary Metrics are utilized by element steering conventions to compute the best way to a goal Administrative separation is a whole number esteem that is utilized to demonstrate a switch's "dependability" Components of a directing table include: Route source Administrative separation Metric