Table of Contents

About This Guide

J Series and SRX Series Documentation and Release Notes
Objectives
Audience
Supported Routing Platforms
Document Conventions
Documentation Feedback
Requesting Technical Support

Routing Protocols

Routing Overview

Routing Overview

Networks and Subnetworks
Autonomous Systems
Interior and Exterior Gateway Protocols
Routing Tables
Forwarding Tables
Dynamic and Static Routing
Route Advertisements
Route Aggregation

Static Routing

Static Routing Configuration Overview

Basic Static Routes

Understanding Basic Static Routing
Example: Configuring a Basic Set of Static Routes

Static Route Selection

Understanding Static Route Preferences and Qualified Next Hops
Example: Controlling Static Route Selection

Static Route Control in Routing and Forwarding Tables

Understanding Static Route Control in Routing and Forwarding Tables

Route Retention
Readvertisement Prevention
Forced Rejection of Passive Route Traffic

Example: Controlling Static Routes in Routing and Forwarding Tables

Default Static Route Behavior

Understanding Static Routing Default Properties
Example: Defining Default Behavior for All Static Routes

Verifying the Static Route Configuration

RIP Overview

Distance-Vector Routing Protocols
Maximizing Hop Count
RIP Packets
Split Horizon and Poison Reverse Efficiency Techniques
Limitations of Unidirectional Connectivity

RIPng Overview

RIPng Protocol Overview
RIPng Standards
RIPng Packets

RIP Configuration Overview

Basic RIP Routing

Understanding Basic RIP Routing
Example: Configuring a Basic RIP Network

RIP Traffic Control Through Metrics

Understanding RIP Traffic Control with Metrics
Example: Controlling Traffic with an Incoming Metric
Example: Controlling Traffic with an Outgoing Metric

RIP Authentication

Understanding RIP Authentication
Enabling Authentication with Plain-Text Passwords (CLI Procedure)
Enabling Authentication with MD5 Authentication (CLI Procedure)

Verifying a RIP Configuration

Verifying the Exchange of RIP Messages
Verifying the RIP-Enabled Interfaces
Verifying Reachability of All Hosts in the RIP Network

OSPF Overview

OSPF Configuration Overview

OSPF Designated Routers

Understanding OSPF Designated Routers
Example: Configuring an OSPF Router Identifier
Example: Controlling OSPF Designated Router Election

OSPF Areas, Area Border Routers, and Backbone Areas

Understanding OSPF Areas, Area Border Routers, and Backbones
Example: Configuring a Single-Area OSPF Network
Example: Configuring a Multiarea OSPF Network

OSPF Stub Areas and Not-So-Stubby Areas

Understanding OSPF Stub Areas and Not-So-Stubby Areas
Example: Configuring OSPF Stub and Not-So-Stubby Areas

OSPF Authentication

Understanding OSPF Authentication
Example: Enabling Authentication for OSPF Exchanges

OSPF Traffic Control

Understanding OSPF Traffic Control
Example: Controlling the Cost of Individual OSPF Network Segments
Example: Controlling OSPF Route Selection in the Forwarding Table

Verifying an OSPF Configuration

Verifying OSPF-Enabled Interfaces
Verifying OSPF Neighbors
Verifying the Number of OSPF Routes
Verifying Reachability of All Hosts in an OSPF Network

IS-IS Overview

IS-IS Areas

System Identifier Mapping

ISO Network Addresses

IS-IS Path Selection

Protocol Data Units

IS-IS Hello PDU
Link-State PDU
Complete Sequence Number PDU
Partial Sequence Number PDU

IS-IS Configuration Overview

Example: Configuring IS-IS

IS-IS Designated Routers

Understanding IS-IS Designated Routers
Configuring IS-IS Designated Routers (CLI Procedure)

BGP Overview

BGP Messages for Session Establishment

BGP Messages for Session Maintenance

IBGP and EBGP

Route Selection

Local Preference

Multiple Exit Discriminator

Default MED Usage
Additional MED Options for Path Selection

Scaling BGP for Large Networks

BGP Configuration Overview

BGP Peering Sessions

Understanding BGP Peering Sessions
Example: Configuring BGP Point-to-Point Peer Sessions
Example: Configuring Internal BGP Peering Sessions

BGP Route Reflectors

Understanding BGP Route Reflectors
Example: Configuring a Route Reflector

BGP Confederations

Understanding BGP Confederations
Example: Configuring BGP Confederations

Verifying a BGP Configuration

Verifying BGP Neighbors
Verifying BGP Groups
Verifying BGP Summary Information
Verifying Reachability of All Peers in a BGP Network

Multicast Overview

Multicast Architecture

Upstream and Downstream Interfaces
Subnetwork Leaves and Branches
Multicast IP Address Ranges
Notation for Multicast Forwarding States

Dense and Sparse Routing Modes

Strategies for Preventing Routing Loops

Reverse-Path Forwarding for Loop Prevention
Shortest-Path Tree for Loop Prevention
Administrative Scoping for Loop Prevention

Multicast Protocol Building Blocks

Multicast Configuration Overview

SAP and SDP Multicast Session Announcements

Understanding SAP and SDP Multicast Session Announcements
Example: Configuring SAP and SDP to Listen for Session Announcements (CLI)

Multicast IGMP

Understanding IGMP and Multicast
Example: Configuring IGMP for Multicast (CLI)

Multicast PIM and Static RPs

Understanding PIM and Static RPs
Example: Configuring PIM Sparse Mode and RP Static IP Addresses (CLI)

PIM Register Messages

Understanding PIM Register Messages
Example: Rejecting Incoming PIM Register Messages on an RP Router (CLI)
Example: Stopping Outgoing PIM Register Messages on a Designated Router (CLI)

PIM RPF Routing Tables

Understanding PIM RPF Routing Tables
Example: Configuring a PIM RPF Routing Table (CLI)

Verifying a Multicast Configuration

Verifying SAP and SDP Addresses and Ports
Verifying the IGMP Version
Verifying the PIM Mode and Interface Configuration
Verifying the PIM RP Configuration
Verifying the RPF Routing Table Configuration

Routing Policies and Stateless Firewall Filters

Routing Policies

Routing Policies Overview

Routing Policies Configuration Overview

Routing Policies

Understanding Routing Policies
Example: Creating a Routing Policy

Routing Policy Terms

Understanding Routing Policy Terms
Example: Creating a Routing Policy Term

Routing Policy Match Conditions and Actions

Understanding Routing Policy Match Conditions and Actions

Match Conditions
Actions

Route-Based Match Conditions

Understanding Route-Based Match Conditions
Example: Rejecting Known Invalid Routes
Example: Grouping Source and Destination Prefixes into a Forwarding Class

Protocol-Based Match Conditions

Understanding Protocol-Based Match Conditions
Example: Injecting OSPF Routes into the BGP Routing Table

Autonomous System Path-Based Actions

Understanding Autonomous System Path-Based Actions
Example: Configuring a Routing Policy to Prepend the AS Path

Routing Policy Damping Parameters

Understanding Damping Parameters
Example: Configuring Damping Parameters

Stateless Firewall Filters

Stateless Firewall Filter Overview

Stateless Firewall Filter Configuration Overview

Stateless Firewall Filter Terms

Understanding Stateless Firewall Filter Terms
Stateless Firewall Filter Match Conditions
Stateless Firewall Filter Actions and Action Modifiers

Trusted Source Stateless Firewall Filters

Understanding Trusted Source Stateless Firewall Filters
Example: Configuring a Stateless Firewall Filter to Accept Traffic from Trusted Sources

Flood Prevention Stateless Firewall Filters

Understanding Flood Prevention Stateless Firewall Filters
Example: Configuring a Stateless Firewall Filter to Protect Against TCP and ICMP Floods

Fragment Handling Stateless Firewall Filters

Understanding Fragment Handling Stateless Firewall Filters
Example: Configuring a Stateless Firewall Filter to Handle Fragments
Example: Configuring a Filter to Match on IPv6 Flags

Index