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Routing Overview

At its most fundamental level, routing is the process of delivering a message across a network or networks. This task is divided into two primary components: the exchange of routing information to accurately forward packets from source to destination and the packet-forwarding process.

To use the routing capabilities of a J-series Services Router, you must understand the fundamentals of IP routing and the routing protocols that are primarily responsible for the transmission of unicast traffic. To read this chapter, you need a basic understanding of IP addressing and TCP/IP.

Unless otherwise specified, J-series Services Routers support IPv6 addressing and routing. For information about IPv6, see the JUNOS Routing Protocols Configuration Guide.

This chapter includes the following topics. For more information, see the JUNOS Routing Protocols Configuration Guide.


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