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by Arvind Durai, Ray Blair, Josh Loveless
IP Multicast, Volume 1: Cisco IP Multicast Networking
About This E-Book
Title Page
Copyright Page
About the Authors
About the Technical Reviewers
Dedications
Acknowledgments
Contents at a Glance
Contents
Command Syntax Conventions
Introduction
Who Should Read This Book?
How This Book Is Organized
Chapter 1. Introduction to IP Multicast
What Problem Does Multicast Solve?
Multicast Applications and Services
One-to-Many Multicast Applications
Many-to-Many Multicast Applications
Many-to-One Multicast Applications
Multicast Packet
What Is a Source?
What Is a Receiver?
L3 Multicast Is Built on the TCP/IP Protocol Stack
It’s a Group Thing
IPv4 Layer 3 Multicast Addressing Defines Groups
IPv4 Multicast Group Address Assignments
Important Multicast Groups and Group Considerations
IPv4 Local Network Control
IPv4 Inter-Network Control
The History of Multicast
The MBone
Native Internet Multicast
IPv6 Multicast
Multicast Development and Standardization
Summary
Chapter 2. Network Access and Layer 2 Multicast
Layered Encapsulation
MAC Address Mapping
Switching Multicast Frames
Group Subscription
IGMP on the Gateway Router
IGMP Versions
IGMPv1
IGMPv2
IGMPv3
Configuring IGMP on a Router
Mixed Groups: Interoperability Between IGMPv1, v2, and v3
Layer 2 Group Management
Cisco Group Management Protocol
Router-Port Group Management Protocol
Snooping
IGMP Snooping
Maintaining Group Membership
Configuring IP IGMP Snooping
The Process of Packet Replication in a Switch
Protecting Layer 2
Storm Control
Summary
References
Chapter 3. IP Multicast at Layer 3
Multicast Hosts
Networked Groups: Client/Server
Network Hosts
Multicast Routing: An Introduction to Protocol Independent Multicast and Multicast Trees
Seeing the Forest Through the Trees
Concepts of PIM Group States
Two Types of Trees
PIM Neighbors
PIM Messages: Join, Leave, Prune, Graft, and Assert
PIM Modes
PIM Dense-Mode
PIM Sparse-Mode
PIM Sparse-Dense Mode
Multicast Flow at the Leaf
The Rendezvous Point and Shared Tree Dynamics
Building the Multicast Routing Information Base
PIM-BiDir
PIM-SSM
Summary
Chapter 4. Protocol Independent Multicast
RP Overview
IP Multicast Domains
Basic PIM Configuration
Static RP
Dynamic RP Information Propagation
Auto RP
BSR
Anycast RP
Multicast Source Discovery Protocol
PIM Anycast RP
Phantom RP
Sample Configuration—Phantom RP on IOS
PIM SSM Configuration
Summary
Chapter 5. IP Multicast Design Considerations and Implementation
Multicast Group Scoping
Organizational and Global Group Assignment Considerations
IPv4 Considerations
Using Group Scoping for Hybrid Designs and RP Placement
Multicast RP Design with MSDP Mesh Group
Multicast RP Hybrid Design with Scoped Multicast Domains
RP Placement
Multicast Traffic Engineering and Forwarding
More on mRIB, mFIB, and RPF Checks
Traffic Engineering Using IP Multipath Feature
Multicast Traffic Engineering: Deterministic Path Selection
IP Multicast Best Practices and Security
Before Enabling PIM
General Best Practices
Basic Multicast Security
Securing Multicast Domains with Boundaries and Borders
Protecting Multicast RPs
Best Practice and Security Summary
Putting It All Together
Scenario: Multicaster’s Bank Corp. Media Services
Summary
Chapter 6. IPv6 Multicast Networks
IPv6 Fundamentals: A Quick Overview
IPv6 Layer 3 Multicast Group Addressing
IPv6 Multicast Group Address Assignments
IANA Unicast-Prefix–Based Multicast Address
IPv6 Source-Specific Addressing
Solicited-Node Multicast Addresses
IPv6 Address Scoping and Schema Considerations
Multicast-IPv6-Address-to-MAC-Address Mapping
IPv6 Layer 2 and Layer 3 Multicast
Multicast Listener Discovery for IPv6
IPv6 Layer 3 Multicast and Protocol Independent Multicast 6 (PIM6)
Summary
Chapter 7. Operating and Troubleshooting IP Multicast Networks
Multicast Troubleshooting Logic
Multicast Troubleshooting Methodology
Baseline Check: Source and Receiver Verification
State Verification
Overview of Common Tools for Multicast Troubleshooting
Ping Test
SLA Test
Common Multicast Debug Commands
Multicast Troubleshooting
Multicast Troubleshooting Case Study
Important Multicast show Commands
show ip igmp group Command
show ip igmp interface/show igmp interface Commands
show ip mroute/show mrib route Command
show ip pim interface/show pim interface Commands
show ip pim neighbor/show pim neighbor Commands
show ip pim rp Command
show ip pim rp mapping/show pim rp mapping Commands
Summary
Index
Code Snippets
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