List of Figures

Figure 2.1 Juniper Networks Router Architecture

Figure 3.1 Router Architecture

Figure 3.2 Control Packet Handling: Routing and Forwarding Table Updates

Figure 3.3 Data Flow through an M40e Router

Figure 3.4 Data Flow through a T640 Routing Node

Figure 3.5 T640 Internet Routing Node Chassis and Components

Figure 3.6 T640 SIB

Figure 3.7 T640 FPCs

Figure 3.8 T640 CB

Figure 3.9 T640 SCG

Figure 3.10 T640 Craft Interface

Figure 3.11 T640 CIP

Figure 3.12 Air Flow through the T640 Chassis

Figure 3.13 T320 Internet Router Chassis and Components

Figure 3.14 T320 SIB

Figure 3.15 T320 FPCs

Figure 3.16 T320 CB

Figure 3.17 T320 SCG

Figure 3.18 T320 Craft Interface

Figure 3.19 T320 CIP

Figure 3.20 Air Flow through the T320 Chassis

Figure 3.21 M160 Internet Router Chassis and Components

Figure 3.22 M160 SFM

Figure 3.23 M160 FPCs

Figure 3.24 M160 PCG

Figure 3.25 M160 MCS

Figure 3.26 M160 Craft Interface

Figure 3.27 M160 CIP

Figure 3.28 Air Flow through the M160 Router

Figure 3.29 M40e Internet Router Chassis and Components

Figure 3.30 M40 Internet Router Chassis and Components

Figure 3.31 M40 Craft Interface

Figure 3.32 Air Flow through the M40 Chassis

Figure 3.33 M20 Internet Router Chassis and Components

Figure 3.34 M20 FPCs in the Chassis

Figure 3.35 M20 SSB

Figure 3.36 M20 Craft Interface

Figure 3.37 Air Flow through the M20 Chassis

Figure 3.38 M5 and M10 Internet Routers Chassis and Components

Figure 3.39 M5 and M10 FEB

Figure 3.40 M10 Craft Interface

Figure 3.41 Air Flow through the M5 and M10 Chassis

Figure 4.1 AC Plug Types

Figure 4.2 Unpacking a Router from the Shipping Crate

Figure 4.3 Unpacking an M5 or M10 Router from the Shipping Box

Figure 4.4 Installing a T640 Routing Node Using a Lift

Figure 4.5 Installing a Chassis Manually

Figure 4.6 Console and Auxiliary Port Connector

Figure 4.7 Ethernet Port Connector

Figure 4.8 Fiber-Optic Cable Connector

Figure 4.9 Connect the AC Power Cord to an M20 Router

Figure 4.10 Connect DC Power to an M40e or M160 Router

Figure 5.1 CLI Command Hierarchy Example

Figure 5.2 Commands for Storing and Modifying the Router Configuration

Figure 5.3 Confirm a Configuration

Figure 5.4 Load a Configuration from a File Using Load Override

Figure 5.5 Load a Configuration from a File Using Load Replace

Figure 5.6 Load a Configuration from a File Using Load Merge

Figure 6.1 Remote and Local E1 Loopback

Figure 6.2 Multilink Interface Configuration

Figure 6.3 APS Configuration Topologies

Figure 6.4 APS Load Sharing between Circuit Pairs

Figure 6.5 Remote and Local T1 Loopback

Figure 6.6 Segmented and Interpolated Drop Profiles

Figure 8.1 Flows of Routing Information and Packets

Figure 8.2 Routing Policies to Control Routing Information Flow

Figure 8.3 Firewall Filters to Control Packet Flow

Figure 8.4 Policy Control Points

Figure 8.5 Importing and Exporting Routes

Figure 8.6 Import and Export Routing Policies

Figure 8.7 Routing Policy Evaluation

Figure 8.8 Routing Policy Chain Evaluation

Figure 8.9 Routing Policy Subroutine Evaluation

Figure 9.1 Synchronizing Routing Exchange between the Routing and Forwarding Tables

Figure 9.2 Example: BGP Confederation Topology

Figure 9.3 Source-Active Message Flooding

Figure 11.1 Label Encoding

Figure 11.2 CSPF Computation Process

Figure 11.3 Typical SPF Tree, Sourced from Router A

Figure 11.4 Modified SPF Tree, Using LSP A “D as a Shortcut

Figure 11.5 Modified SPF Tree, Using Both LSP A “D and LSP A “E as Shortcuts

Figure 11.6 SPF Computations with Advertised LSPs

Figure 11.7 MPLS Application Topology

Figure 11.8 How BGP Determines How to Reach Next-Hop Addresses

Figure 11.9 MPLS Routing and Forwarding Tables When Traffic-Engineering BGP

Figure 11.10 MPLS Routing and Forwarding Tables When Traffic-Engineering BGP-IGP

Figure 11.11 Detours Established for an LSP Using Fast Reroute

Figure 11.12 Detour after the Link from Router B to Router C Fails

Figure 11.13 Detours Merging into Other Detours

Figure 11.14 Swap and Push Label Operation when Tunneling LDP LSPs through RSVP LSPs

Figure 11.15 Double Push Label Operation when Tunneling LDP LSPs through RSVP LSPs

Figure 12.1 VPN Router Components

Figure 12.2 Using MPLS LSPs to Tunnel between PE Routers

Figure 12.3 Label Stack

Figure 14.1 BGP Configuration Topology

Figure 14.2 BGP Routing Policy Configuration

Figure 14.3 BGP Route Aggregation Topology

Figure 14.4 BGP Peering Topology

Figure 14.5 BGP Route Flap Damping Topology

Figure 14.6 BGP Route Reflector Topology

Figure 14.7 BGP Single Route Reflector Topology

Figure 14.8 BGP Route Reflection Cluster Topology

Figure 14.9 BGP Hierarchical Route Reflection Topology

Figure 14.10 BGP Routing Loop Protection Topology

Figure 14.11 BGP Confederation Topology

Figure 14.12 Layer 3 VPN Topology