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Table of Contents

About This Guide
JUNOS Documentation and Release Notes
Objectives
Audience
Supported Routing Platforms
Using the Indexes
Documentation Conventions
Documentation Feedback
Requesting Technical Support
IPTV Network Solutions
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 of the BGF VoIP Solution
The BGF VoIP Solution in a Next-Generation Network Overview
BGF VoIP Solution Terms and Abbreviations
BGF VoIP Solution Architecture
Gateway Controller
BGF
PGCP
BGF Topology with Multiple Virtual BGFs and Gateway Controllers Overview
Sample Voice Network Topology
Control of Voice Flows with Gates Overview
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
Terminations
Contexts
Streams
Virtual Interfaces with the BGF Overview
Twice NAT for VoIP Traffic Overview
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
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
Interim AH Scheme
Symmetric Control Association
Priority and Emergency Call Handling
BGF VoIP Call Setup Overview
VPN Aggregation for VoIP Calls Overview
How VPN Aggregation Works
Session Mirroring Overview
Activation of Session Mirroring for a Gate
How Session Mirroring Works
Security for Packets Sent to the Delivery Function
Configuring the BGF
Configuring a Virtual BGF
Adding a Gateway Controller to the Virtual BGF Configuration
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 Services PIC or MS-DPC
Configuring VPN Aggregation
Configuring Latch Deadlock and Media Inactivity Detection
Configuring H.248 Timers
Configuring H.248 Base Root Properties
Configuring H.248 Segmentation Properties
Configuring Session Mirroring
Disabling Session Mirroring
Re-Enabling Session Mirroring
Configuring IPSec for Mirrored Sessions
Verifying Your Configuration
Verifying the BGF Configuration
Verifying the Service Interface Configuration
Verifying the Service Set Configuration
Verifying the NAT Pool Configuration
Verifying the Stateful Firewall Configuration
Verifying the VPN Aggregation Configuration
Monitoring the BGF
Monitoring RTP and RTCP Traffic
Enabling Monitoring of 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
Restarting the pgcpd Process
Disabling and Enabling the pgcpd Process
Disabling the pgcpd Process
Enabling the pgcpd Process
Activating and Deactivating PGCP Services
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
Configuring the Inactivity Timer Package
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
Limiting the Rate for All Notifications from 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
Configuring the Method and Reason in ServiceChange Commands for Control Associations
Virtual Interface States
Method and Reason Options for Virtual Interface State Changes
Configuring the Method and Reason in ServiceChange Commands for Virtual Interfaces
Context States
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
Displaying the Status of the Routing Engine Synchronization
Failover of the Service PICs
Procedure in Case of Service PIC Failure
Configuring the BGF for PIC Redundancy
Configuring the Redundancy Services PIC (rsp) Interface
Configuring the Service Set for Redundant Service 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
Troubleshooting the BGF
Tracing BGF Operations
Logging pgcpd Messages
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
Requirements
Overview and Topology
Configuration
Configuring the Service Interfaces
Configuring the Virtual BGFs
Configuring NAT Pools
Assigning the NAT Pools to a Media Service
Configuring the Virtual Interfaces
Configuring Rules for the BGF
Configuring a Stateful Firewall
Configuring a Service Set
Configuring QoS for Voice Calls
Verification
Verifying the Active BGF Configuration
Verifying That Gates Are Running
Verifying Terminations
Verifying PGCP Flows
Verifying H.248 Parameters Set by the Gateway Controller
Troubleshooting
No Audio is Reported on a Stream
IMSG VoIP Solution
Overview of the IMSG
IMSG VoIP Solution Overview
IMSG Terms and Abbreviations
IMSG VoIP Solution Architecture
BGF
BSG
SPDF
How the SPDF Works
IPSec
BSG Policy Overview
BSG Policy Model
Policy Sets
Service Points
Media Anchoring Overview
SIP Routing Overview
SIP Timers Overview
SIP Timers for Calls in Initiation Stage
SIP Timers for Established Calls
Providing QoS for VoIP Traffic 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 Call Admission Control (CAC)
Configuring Controllers
Assigning Controllers 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
Deleting Service Points
Configuring SIP Timers
Configuring QoS
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 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
Troubleshooting the IMSG
Tracing Border Signaling Gateway Operations
Tracing the SBC Configuration Process
Index
Index

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