About This Guide

JUNOS Documentation and Release Notes

Objectives

Audience

Supported Routing Platforms

Using the Indexes

Documentation Conventions

Documentation Feedback

Requesting Technical Support

IPTV Video Application

System Requirements

Terms and Acronyms

Overview and Topology

Video Network Elements

IGMP and Video Networks

IGMP Basics

IGMP and Intermediate Devices

IGMP Snooping

IGMP Proxy

DHCP Relay and Video Services Routers

Video Networking and the Metro or Core Network

What IP Routing Protocols to Use

Using MPLS and Label-Switched Paths

Redundancy and Failure Detection for Video Services Routers

Sample Configuration of an IPTV Network

Configuring the Access Side of a Video Services Router Running JUNOS Software

Configuring the Metro and Core Side of a Video Services Router Running JUNOS Software

Configuring Router Redundancy

Verifying Your Configuration

Verifying Connectivity

Using Operational Commands

Unidirectional Links

Overview of Unidirectional Links

Configurable Options

Logical Interfaces

Alarm Reporting

Operational State

Statistics

System Requirements

Configuring and Verifying Unidirectional Links

Configuring and Verifying a Simple Example

Configuring and Verifying a More Complex Example

BGF VoIP Solution Overview

BGF VoIP Solution Overview

The BGF VoIP Solution in a Next-Generation Network Overview

BGF VoIP Solution Terms and Abbreviations

BGF VoIP Solution Architecture

BGF Architecture Diagram

Gateway Controller

BGF

PGCP

BGF Topology with Multiple Virtual BGFs and Gateway Controllers Overview

Sample BGF Voice Network Topology

Control of Voice Flows with Gates Overview

Using Gates for Voice Flows

Gate Addressing

Gate Opening, Closing, and Modification Overview

Gate Identification

Forward and Drop Operations for RTP and RTCP Gates

Latch Deadlock and Media Inactivity Detection and Reporting

Detection

Reporting

H.248 Building Blocks Overview

H.248 Components

Terminations

Contexts

Streams

Virtual Interfaces with the BGF Overview

Twice NAT for VoIP Traffic Overview

Introduction to Twice NAT

NAT Pool Selection

NAT Pool Selection by Matching the Transport Protocol

IPv4-to-IPv6 Address Translation

Quality of Service for VoIP Traffic Overview

Rate-Limiting for VoIP Traffic Overview

Introduction to Rate-Limiting

How the Rate-Limiting Feature Works

Default Values for Rate-Limiting Parameters

Rate Limiting and Fast Update Filters

Rate-Limiting Statistics Display

Security for BGF Overview

Protecting H.248 Messages and Mirrored Sessions with IPsec Overview

Interim AH Scheme

Symmetric Control Association

Priority and Emergency Call Handling

BGF VoIP Call Setup Overview

VPN Aggregation for VoIP Calls Overview

Introduction to VPN Aggregation

How VPN Aggregation Works

Session Mirroring Overview

Session Mirroring Introduction

Activation of Session Mirroring for a Gate

How Session Mirroring Works

Protecting Mirrored Sessions with IPsec Overview

Configuring the BGF

Configuring Virtual BGFs to Run on Services PICs

Enabling the BGF Service Package on the PIC or DPC

Configuring the Control Services PIC or DPC for the Virtual BGF

Configuring a Virtual BGF

Adding a Gateway Controller to the Virtual BGF Configuration

Configuring the H.248 Profile

Configuring NAT Pools for the BGF

Configuring a Remotely Controlled NAT Pool

Configuring a NAT Pool Selected Based on Transport Protocol

Assigning a NAT Pool

Configuring Virtual Interfaces

Creating a Rule That Specifies the NAT Pool to Use on a Virtual BGF

Specifying the Order in Which the BGF Processes Rules

Configuring a Stateful Firewall for the BGF

Configuring a Service Set

Configuring Rate Limiting for the BGF

Configuring QoS for the BGF

Configuring the Data Services PIC or MS-DPC

Configuring VPN Aggregation

Configuring Latch Deadlock and Media Inactivity Detection

Configuring IPsec to Protect H.248 Messages or Mirrored Sessions in Tunnel Mode

Configuring IPsec to Protect H.248 Messages in Transport Mode

Configuring H.248 Base Root Properties

Configuring H.248 Segmentation Properties

Configuring Session Mirroring

Setting Up Session Mirroring

Configuring IPsec to Protect Mirrored Sessions in Tunnel Mode

Disabling Session Mirroring

Re-Enabling Session Mirroring

Verifying Your Configuration

Verifying the BGF Configuration

Verifying the BGF Service Package Configuration

Verifying the Control Service PIC Configuration

Verifying the Service Interface Configuration

Verifying the Service Set Configuration

Verifying the NAT Pool Configuration for a Remotely Controlled NAT Pool

Verifying the NAT Pool Configuration for a Transport Protocol-Based NAT Pool

Verifying the Stateful Firewall Configuration

Verifying the VPN Aggregation Configuration

Verifying VPN Aggregation Policy Options Configuration

Verifying VPN Aggregation Routing Instances Configuration

Verifying VPN Aggregation Service Set Configuration

Verifying VPN Aggregation Service Interface Pool Configuration

Verifying VPN Aggregation Virtual Interface Configuration

Monitoring the BGF

Monitoring RTP and RTCP Traffic

Monitoring Gates

Displaying Information About All Gates on a Virtual BGF

Displaying Extensive Information About All Gates on a Virtual BGF

Displaying the Number of Gates Installed on a Virtual BGF

Displaying Information About a Specific Gate

Displaying Extensive Information About a Specific Gate

Displaying Statistics for Gates

Collecting Statistics on Gates with Rate-Limited Flows

Improving Performance While Collecting Gate Statistics

Displaying the Number of FUF Terms Installed on a Virtual BGF

Displaying Gates That Are Being Mirrored

Monitoring Terminations

Displaying Information About All Terminations on a Virtual BGF

Displaying Information About Terminations in H.248 Format

Displaying Information About Specific Terminations

Monitoring PGCP Root Terminations

Monitoring Statistics for the Virtual BGF

Monitoring Flows

Displaying All Flows

Displaying Extensive Information About All Flows

Displaying Extensive Information About Flows for a Specific Gate

Monitoring Conversations

Displaying All Conversations

Displaying Extensive Information About All Conversations

Managing the BGF

Managing the pgcpd Process Running on a Routing Engine

Restarting the pgcpd Process Running on the Routing Engine

Disabling and Enabling the pgcpd Process

Activating and Deactivating PGCP Services Running on the Routing Engine

Managing the pgcpd Process Running on a Services PIC

Restarting the pgcpd Process Running on a Services PIC

Deactivating the PGCP Service

Activating the PGCP Service

Shutting Down a Virtual BGF

Forcing the Shutdown of a Virtual BGF

Performing a Graceful Shutdown of a Virtual BGF

Making the Virtual BGF Operational Again

Shutting Down a Virtual Interface

Forcing the Shutdown of a Virtual Interface

Performing a Graceful Shutdown of a Virtual Interface

Making the Virtual Interface Operational Again

Maintaining Synchronization Between the BGF and the Gateway Controller

Detecting Hanging Terminations

Activating and Configuring Hanging Termination Detection

Deactivating Hanging Termination Detection

Displaying the Value of the Timerx Timer Configured on the Virtual BGF

Displaying the Value of the Hanging Termination Timer for a Termination

Detecting Gateway Controller Failures

Maintaining Synchronization by Auditing Terminations

Using AND/OR Logic with Audit Commands

Example: Audit Section Filter with AND Logic

Example: Audit Section Filter with OR Logic

Managing Overload Control with Priority Handling for Emergency Calls

Configuring Overload Control for Voice Calls

Preventing Excessive Media Inactivity Notifications

Configuring H.248 Notification Behavior to Prevent Excessive Media Inactivity Notifications

Managing the Rate for All Notifications Sent by a PIC or DPC

Enabling Wildcards for ServiceChange Notifications

Controlling ServiceChange Commands Sent from the Virtual BGF to the Gateway Controller

Control Association States

Method and Reason Options for Control Association State Changes

Virtual Interface States

Method and Reason Options for Virtual Interface State Changes

Context States

Configuring the Method and Reason in Service Change Commands

Configuring the Method and Reason in ServiceChange Commands for Control Associations

Configuring the Method and Reason in ServiceChange Commands for Virtual Interfaces

Configuring the Method and Reason in ServiceChange Commands for Contexts

Upgrade Guidelines for BGF VoIP Users

Upgrade Overview for BGF VoIP Users

Managing Emergency and Non-Emergency Call Traffic Prior to Upgrading

Maintenance and Failover in the BGF

Maintenance and Failover in the BGF Overview

Failover in Case of a Routing Engine Failure

Gate Synchronization Procedure

Configuring Synchronization Properties in Case of Routing Engine Failure

Displaying the Status of the Routing Engine Synchronization

Failover of the Data Service PICs

Procedure in Case of Data PIC Failure

Configuring the BGF for Data Service PIC Redundancy

Configuring the Redundancy Services PIC (rsp) Interface

Configuring the Service Set for Redundant Services PICS

Manually Switching from the Primary PIC to the Secondary PIC.

Manually Reverting from the Secondary PIC to the Primary PIC

Displaying the Status of the Redundant Service PICs

Failover of the Control Service PICs

Configuring the rms Interface

Specifying the rms Interface as the Platform Device for the Virtual BGF

Manually Switching from the Primary Control Services PIC to the Secondary PIC

Manually Reverting from the Secondary PIC to the Primary PIC

Displaying the Status of the Redundant Service PICs

Troubleshooting the BGF

Tracing BGF Operations

Tracing BGF Operations for a Specific Control Services PIC

Logging Messages for the pgcpd Process Running on the Routing Engine

Logging H.248 Messages

Fields in the H.248 Messages

Messages That Exceed Output Buffer Limit

Configuring Logging of H.248 Messages

Example: Using the BGF to Provide VoIP Solutions in a Next-Generation Network

Example: Using the BGF to Provide VoIP Solutions in a Next-Generation Network

Overview of the IMSG

IMSG Session Border Control Solution Overview

IMSG Terms and Abbreviations

IMSG Architecture Overview

BGF

BSG

SPDF

How the SPDF Works

IPS and FW Applications

IPsec

BSG Policy Overview

Types of BSG Policies

BSG Policy Model

Policy Sets

Service Points

Manipulation of Headers and Request URIs in SIP Messages

How Header Manipulation Works

Applying Message Manipulation Rules

Header Manipulation Examples

Example: Removing a Text String from the Alert-Info Field

Example: Rejecting a Message Based on the Field Value of the From Header

Example: Using a Regular Expression to Modify the P-Asserted-Identity Field Value

Example: Adding the Transport Protocol and “q” Parameter to the Contact Header

Using High Availability with Message Manipulation

Displaying Message Manipulation Rules That Are Currently Being Applied

Media Anchoring Overview

SIP Routing Overview

Locating SIP Servers Using DNS Overview

How the DNS Resolution Process Works

Methods for Accelerating the Name Resolution Process

Name Resolution Cache

Server Clusters

Virtual Interfaces and NAT Pool Assignment with the IMSG

IMSG VPN Routing Overview

SIP Timers Overview

SIP Timers for Calls in Initiation Stage

SIP Timers for Established Calls

Providing QoS for VoIP Traffic Overview

IMSG Overload Protection Overview

Providing Call Admission Control (CAC) Overview

Configuring the IMSG

Enabling the BSG Service Package on the PIC or DPC

Setting Up System Processes

Configuring the Services PIC or DPC for the BSG

Configuring the Services PIC or DPC for the BGF

Configuring NAT Pools

Assigning a NAT Pool

Configuring Virtual Interfaces

Creating a Rule That Specifies the NAT Pool to Use on a Virtual BGF

Specifying the Order in Which the BGF Processes Rules

Configuring a Stateful Firewall

Configuring a Service Set

Configuring a Virtual BGF

Creating BSG Instances

Configuring a Gateway Controller

Using Regular Expressions to Match Incoming SIP Messages to Policies

Examples of Regular Expressions Used for VoIP Calls

Configuring a New Transaction Policy

Using New Transaction Policies to Route SIP Requests

Configuring Message Manipulation Rules

Using New Transaction Policies to Manipulate SIP Headers or to Reject SIP Messages

Configuring Call Admission Control (CAC)

Configuring Admission Control Profiles

Assigning Admission Control Profiles to New Transaction Policies

Configuring New Transaction Policy Sets

Configuring a New Call Usage Policy

Configuring New Call Usage Policy Sets

Attaching Policies to a Service Point

Configuring a Service Point

Deleting Service Points

Configuring Routing of VPN Calls

Configuring SIP Timers

Configuring QoS and Rate Limiting

Configuring DNS Resolution for Locating SIP Servers

Configuring Firewall and Intrusion Prevention System (IPS) Services for SIP Signaling Traffic

Enabling the IDP and Stateful Firewall Service Packages

Creating an IDP Policy

Configuring a Stateful Firewall

Configuring the Service Set

Applying the Service Set to a Services Interface

Verifying the IMSG Configuration

Monitoring the IMSG

Monitoring Call Statistics

Monitoring Statistics for Failed Calls

Monitoring Call Information for a Specific Contact

Monitoring Call Information for a Specific Request URI

Monitoring Overload Protection

Monitoring Call Admission Control (CAC) Statistics

Managing the IMSG

Activating and Deactivating BSG Services

Activating BSG Services

Deactivating BSG Services

Managing the SBC Configuration Process

Restarting the SBC Configuration Process

Disabling and Enabling the SBC Configuration Process

Disabling the SBC Configuration Process

Enabling the SBC Configuration Process

Maintenance and Failover in the IMSG

Maintenance and Failover in the IMSG Overview

Failover of the Control Service PICs

Configuring the rms Interface

Specifying the rms Interface as the Platform Device for the Virtual BGF

Manually Switching from the Primary Control Services PIC to the Secondary PIC

Manually Reverting from the Secondary PIC to the Primary PIC

Displaying the Status of the Redundant Service PICs

Verifying the Status of a Master or Backup BSG

Troubleshooting the IMSG

Tracing BSG Operations

Tracing the SBC Configuration Process

Index

Index