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Concept Exercise Chapter 11 Name:

Date: Class:

Cisco Exercises - Semester 2 - Networking Fundamentals

Chapter11 Routing

Introduction

Which path should traffic take through the cloud of networks? Path determination occurs at Layer 3 of the OSI reference model, the network layer. The path determination function enables a router to evaluate the available paths to a destination and to establish the preferred handling of a packet.

Routing services use network topology information when evaluating network paths. This information can be configured by the network administrator or collected through dynamic processes running in the network.

The network layer interfaces to networks and provides best-effort, end-to-end packet delivery services to its user, the transport layer. The network layer sends packets from the source network to the destination network based on the IP routing table.

After the router determines which path to use, it can proceed with forwarding the packet: It takes the packet it accepted on one interface and forwards it to another interface or port that reflects the best path to the packet's destination.

Concept Questions

Demonstrate you knowledge of these concepts by answering the following questions in the space provided.



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