Cisco Catalyst 2960-XR User manual

Catalyst 2960-XR Switch IP Multicast Routing Configuration Guide,
Cisco IOS Release 15.0(2)EX1
First Published: August 08, 2013
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Text Part Number: OL-29426-01

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CONTENTS
Preface Preface ix
Document Conventions ix
Related Documentation xi
Obtaining Documentation and Submitting a Service Request xi
CHAPTER 1 Using the Command-Line Interface 1
Information About Using the Command-Line Interface 1
Command Modes 1
Using the Help System 3
Understanding Abbreviated Commands 4
No and default Forms of Commands 4
CLI Error Messages 4
Configuration Logging 5
How to Use the CLI to Configure Features 5
Configuring the Command History 5
Changing the Command History Buffer Size 6
Recalling Commands 6
Disabling the Command History Feature 7
Enabling and Disabling Editing Features 7
Editing Commands through Keystrokes 8
Editing Command Lines That Wrap 9
Searching and Filtering Output of show and more Commands 10
Accessing the CLI through a Console Connection or through Telnet 11
CHAPTER 2 Understanding Cisco's Implementation of IP Multicast Routing 13
Cisco’s Implementation of IP Multicast Routing 13
Information About IGMP 14
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IGMP Versions 15
IGMP Version 1 15
IGMP Version 2 15
Default IGMP Configuration 15
Configuring Optional IGMP Features 16
Configuring the Switch as a Member of a Group 16
Controlling Access to IP Multicast Group 17
Changing the IGMP Version 19
Modifying the IGMP Host-Query Message Interval 20
Changing the IGMP Query Timeout for IGMPv2 22
Changing the Maximum Query Response Time for IGMPv2 23
Configuring the Switch as a Statically Connected Member 25
Configuration Examples for IGMP Features 26
Example: Configuring the Switch as a Member of a Multicast Group 26
Example: Controlling Access to IP Multicast Groups 27
Where to Go Next 27
Additional References 27
CHAPTER 3 Configuring CGMP 29
Finding Feature Information 29
Prerequisites for Configuring CGMP 29
Restrictions for CGMP 30
Information About CGMP 30
Enabling CGMP Server Support 30
Monitoring CGMP 32
Where to Go Next 33
Additional References 33
Feature History and Information for CGMP 34
CHAPTER 4 Configuring PIM 35
Finding Feature Information 35
Prerequisites for Configuring PIM 35
Prerequisites for Configuring PIM Stub Routing 35
Restrictions for PIM 36
Restrictions for Configuring Auto-RP and BSR 36
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Information About PIM 37
PIM Versions 37
PIMv1 and PIMv2 Interoperability 37
PIM Modes 38
PIM DM 38
PIM-SM 39
PIM Stub Routing 39
IGMP Helper 40
Auto-RP 40
Auto-RP Benefits 41
PIM v2 BSR 42
Multicast Forwarding and Reverse Path Check 42
PIM Shared Tree and Source Tree 44
Default PIM Routing Configuration 45
How to Configure PIM 45
Enabling PIM Stub Routing 45
Configuring a Rendezvous Point 47
Manually Assigning an RP to Multicast Groups 48
Setting Up Auto-RP in a New Internetwork 50
Adding Auto-RP to an Existing Sparse-Mode Cloud 52
Preventing Join Messages to False RPs 55
Filtering Incoming RP Announcement Messages 55
Configuring PIMv2 BSR 57
Defining the PIM Domain Border 58
Defining the IP Multicast Boundary 59
Configuring Candidate BSRs 61
Configuring the Candidate RPs 63
Configuring Auto-RP and BSR for the Network 64
Delaying the Use of PIM Shortest-Path Tree 66
Modifying the PIM Router-Query Message Interval 68
Monitoring PIM 69
Monitoring RP Mapping 70
Troubleshooting PIMv1 and PIMv2 Interoperability Problems 70
Configuration Examples for PIM 71
Example: Enabling PIM Stub Routing 71
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Example: Verifying PIM Stub Routing 71
Example: Manually Assigning an RP to Multicast Groups 72
Example: Configuring Auto-RP 72
Example: Defining the IP Multicast Boundary to Deny Auto-RP Information 72
Example: Filtering Incoming RP Announcement Messages 72
Example: Preventing Join Messages to False RPs 73
Example: Configuring Candidate BSRs 73
Example: Configuring Candidate RPs 74
Where to Go Next 74
Additional References 74
Feature History and Information for PIM 75
CHAPTER 5 Configuring SSM 77
Finding Feature Information 77
Prerequisites for Configuring SSM 77
Restrictions for Configuring SSM 78
Information About SSM 79
SSM Components Overview 79
SSM and Internet Standard Multicast (ISM) 79
SSM IP Address Range 80
SSM Operations 80
IGMPv3 Host Signalling 80
SSM Mapping 81
Static SSM Mapping 81
DNS-Based SSM Mapping 81
How to Configure SSM 82
Configuring SSM 82
Configuring Source Specific Multicast Mapping 83
Configuring Static SSM Mapping 84
Configuring DNS-Based SSM Mapping 85
Configuring Static Traffic Forwarding with SSM Mapping 87
Monitoring SSM 89
Monitoring SSM Mapping 89
Where to Go Next 89
Additional References 90
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Feature History and Information for SSM 91
CHAPTER 6 Configuring IP Multicast Routing 93
Finding Feature Information 93
Prerequisites for IP Multicast Routing 93
Restrictions for IP Multicast Routing 94
Information About IP Multicast Routing 94
Multicast Boundaries 94
Default IP Multicast Routing Configuration 95
How to Configure Basic IP Multicast Routing 96
Configuring Basic IP Multicast Routing 96
Configuring an IP Multicast Boundary 98
Configuring sdr Listener Support 100
Enabling sdr Listener Support 100
Limiting How Long an sdr Cache Entry Exists 101
Monitoring IP Multicast Routing 102
Configuration Examples for IP Multicast Routing 103
Example: Configuring an IP Multicast Boundary 103
Where to Go Next 103
Additional References 104
Feature History and Information for IP Multicast Routing 105
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Preface
This book describes configuration information and examples for IP multicast routing on the switch.
•Document Conventions, page ix
•Related Documentation, page xi
•Obtaining Documentation and Submitting a Service Request, page xi
Document Conventions
This document uses the following conventions:
DescriptionConvention
Both the ^symbol and Ctrl represent the Control (Ctrl) key on a keyboard.
For example, the key combination ^D or Ctrl-D means that you hold
down the Control key while you press the D key. (Keys are indicated in
capital letters but are not case sensitive.)
^ or Ctrl
Commands and keywords and user-entered text appear in bold font.bold font
Document titles, new or emphasized terms, and arguments for which you
supply values are in italic font.
Italic font
Terminal sessions and information the system displays appear in courier
font.
Courier font
Bold Courier font indicates text that the user must enter.Bold Courier font
Elements in square brackets are optional.[x]
An ellipsis (three consecutive nonbolded periods without spaces) after
a syntax element indicates that the element can be repeated.
...
A vertical line, called a pipe, indicates a choice within a set of keywords
or arguments.
|
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DescriptionConvention
Optional alternative keywords are grouped in brackets and separated by
vertical bars.
[x | y]
Required alternative keywords are grouped in braces and separated by
vertical bars.
{x | y}
Nested set of square brackets or braces indicate optional or required
choices within optional or required elements. Braces and a vertical bar
within square brackets indicate a required choice within an optional
element.
[x {y | z}]
A nonquoted set of characters. Do not use quotation marks around the
string or the string will include the quotation marks.
string
Nonprinting characters such as passwords are in angle brackets.< >
Default responses to system prompts are in square brackets.[ ]
An exclamation point (!) or a pound sign (#) at the beginning of a line
of code indicates a comment line.
!, #
Reader Alert Conventions
This document uses the following conventions for reader alerts:
Means reader take note. Notes contain helpful suggestions or references to material not covered in the
manual.
Note
Means the following information will help you solve a problem.
Tip
Means reader be careful. In this situation, you might do something that could result in equipment damage
or loss of data.
Caution
Means the described action saves time. You can save time by performing the action described in the
paragraph.
Timesaver
Means reader be warned. In this situation, you might perform an action that could result in bodily
injury.
Warning
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Preface
Document Conventions