Configuring Routing Protocols - Juniper SYSTEM BASICS - CONFIGURATION GUIDE V 11.1.X Configuration Manual

JUNOSe 11.1.x System Basics Configuration Guide

Configuring Routing Protocols

After you have set up the interfaces on which IP traffic flows, you can configure the
following routing protocols:
In addition, if you want to make configuration adjustments to IP, see JUNOSe IP, IPv6,
and IGP Configuration Guide, for details.
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Configuring Routing Protocols
IP multicast protocols IP multicasting allows a device to send packets to a group
of hosts, rather than to a list of individual hosts. Routers use multicast routing
algorithms to determine the best route and transmit datagrams throughout the
network. See JUNOSe Multicast Routing Configuration Guide, for information about
how to configure IP multicast.
Open Shortest Path First (OSPF) This interior gateway protocol (IGP) advertises
the states of network links within an autonomous system. An autonomous system
is a set of routers having a single routing policy running under a single technical
administration. See JUNOSe IP, IPv6, and IGP Configuration Guide , for information
about how to configure OSPF.
Integrated Intermediate System–to–Intermediate System (integrated IS-IS) The
integrated IS-IS protocol provides routing for IP networks and is an extension of
the original IS-IS protocol, which provides routing for pure Open Systems
Interconnection (OSI) environments. This link-state protocol builds a complete
and consistent picture of a network's topology by sharing link-state information
across network devices in a routing domain. A routing domain is a collection of
contiguous networks that provide full connectivity to all end systems located
within them. See JUNOSe IP, IPv6, and IGP Configuration Guide , for information
about how to configure IS-IS.
Border Gateway Protocol (BGP) BGP, an external gateway protocol (EGP),
provides loop-free interdomain routing between autonomous systems. See JUNOSe
BGP and MPLS Configuration Guide , for information about how to configure BGP.
Routing Information Protocol (RIP) RIP is an IGP created for use in small,
homogeneous networks. RIP uses distance-vector routing to route information
through IP networks. See JUNOSe IP, IPv6, and IGP Configuration Guide , for
information about how to configure RIP.
Multiprotocol Label Switching (MPLS) MPLS is a hybrid protocol that integrates
network layer routing with label switching to provide a layer 3 network with
traffic management capability. Traffic engineering enables more effective use
of network resources while maintaining high bandwidth and stability. MPLS
enables service providers to offer their customers the best service available given
the provider's resources. There are two fundamental aspects to MPLS:
Label distribution The set of actions MPLS performs to establish and
maintain a label-switched path (LSP), also known as an MPLS tunnel.
Data mapping The process of getting data packets onto an established LSP.
See JUNOSe BGP and MPLS Configuration Guide , for information about
configuring MPLS.