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    A routing table is a crucial component in computer networking, acting as a database that stores the routes to various network destinations. It is typically stored in the RAM of routers or network hosts and is essential for determining the best path for forwarding data packets.

    Components of a Routing Table

    A routing table consists of several key components:

    • Network Identifier: This is the destination subnet and netmask, which helps in identifying the network to which the packet is to be sent1.

    • Next Hop: The address of the next station to which the packet is forwarded on its way to the final destination1.

    • Metric: This value indicates the cost associated with a particular route, helping in determining the most efficient path2.

    • Interface: The outgoing interface through which the packet should be sent to reach the destination network2.

    Types of Routes

    Routing tables can store different types of routes:

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    Wikipedia
    https://en.wikipedia.org › wiki › Routing_table

    Routing table - Wikipedia

    In computer networking, a routing table, or routing information base (RIB), is a data table stored in a router or a network host that lists the routes to particular network destinations, and in some cases, metrics (distances) associated with those routes. The routing table contains information about the topology … See more

    Overview

    A routing table is analogous to a distribution map in package delivery. Whenever a node needs to send data to another node on a network, it must first know where to send it. If the node cannot directly connect to … See more

    Difficulties

    The need to record routes to large numbers of devices using limited storage space represents a major challenge in routing table … See more

    Forwarding table

    Routing tables are generally not used directly for packet forwarding in modern router architectures; instead, they are used to generate the information for a simpler See more

    External links

    • IP Routing from the Linux Network Administrators Guide See more

    Overview image
    Contents

    The routing table consists of at least three information fields:
    1. network identifier: The destination subnet and netmask
    2. metric: The routing metric of the path through which the packet is to be sent. The route will go in … See more

    See also

    • Luleå algorithm
    • Internet protocol suite See more

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  3. TechTarget
    https://www.techtarget.com › ... › routing-ta…

    What is a Routing Table? – A Definition from …

    A routing table is a set of rules, often viewed in table format, that's used to determine where data packets traveling over an Internet Protocol network will be directed. This table is usually stored inside the Random Access Memory of …

  4. GeeksForGeeks
    https://www.geeksforgeeks.org › routin…

    Routing Tables in Computer Network - GeeksforGeeks

    Dec 14, 2022 · Learn what routing tables are, how they are used by routers to forward data packets, and how they are populated. See examples of …

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    • Baeldung
      https://www.baeldung.com › cs › routing-table-entry

      Understanding Routing Table Entry | Baeldung on Computer Science

    • Coursera
      https://www.coursera.org › articles › routing-table

      What Is a Routing Table and How Does It Work? - Coursera