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24-IGMP Configuration Examples

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Introduction

This document provides IGMP configuration examples.

Prerequisites

The configuration examples in this document were created and verified in a lab environment, and all the devices were started with the factory default configuration. When you are working on a live network, make sure you understand the potential impact of every command on your network.

This document assumes that you have basic knowledge of IGMP.

Example: Configuring basic IGMP features

Network configuration

As shown in Figure 1:

· OSPF and PIM-DM run on the network.

· VOD streams are sent in multicast. Hosts of different organizations form stub networks N1 and N2.

· IGMPv2 runs between Switch A and N1, and between the other two switches and N2. Switch A acts as the IGMP querier in N1. Switch B acts as the IGMP querier in N2 because it has a lower IP address.

Configure basic IGMP features on the switches to meet the following requirements:

· Hosts in N1 can join any multicast groups.

· Hosts in N2 can join only multicast group 224.1.1.1.

Figure 1 Network diagram

Analysis

To limit the multicast groups that hosts can join, create an IPv4 basic ACL and specify the multicast groups that you want the hosts to join.

Applicable hardware and software versions

The following matrix shows the hardware and software versions to which this configuration example is applicable:

Hardware	Software version
S6812 switch series S6813 switch series	Release 66xx
S6550XE-HI switch series	Release 6008 and later
S6525XE-HI switch series	Release 6008 and later
S5850 switch series	Release 8005 and later
S5570S-EI switch series	Release 11xx
S5560X-EI switch series	Release 63xx, Release 65xx, Release 66xx
S5560X-HI switch series	Release 63xx, Release 65xx, Release 66xx
S5500V2-EI switch series	Release 63xx, Release 65xx, Release 66xx
MS4520V2-30F switch	Release 63xx, Release 65xx, Release 66xx
MS4520V2-30C switch MS4520V2-54C switch	Release 65xx, Release 66xx
MS4520V2-28S switch MS4520V2-24TP switch	Release 63xx
S6520X-HI switch series S6520X-EI switch series	Release 63xx, Release 65xx, Release 66xx
S6520X-SI switch series S6520-SI switch series	Release 63xx, Release 65xx, Release 66xx
S5000-EI switch series	Release 63xx, Release 65xx, Release 66xx
MS4600 switch series	Release 63xx, Release 65xx, Release 66xx
ES5500 switch series	Release 63xx, Release 65xx, Release 66xx
S5560S-EI switch series S5560S-SI switch series	Release 63xx
S5500V3-24P-SI S5500V3-48P-SI	Release 63xx
S5500V3-SI switch series (except S5500V3-24P-SI and S5500V3-48P-SI)	Not supported
S5170-EI switch series	Not supported
S5130S-HI switch series S5130S-EI switch series S5130S-SI switch series S5130S-LI switch series	Not supported
S5120V2-SI switch series S5120V2-LI switch series	Not supported
S5120V3-EI switch series	Not supported
S5120V3-36F-SI S5120V3-28P-HPWR-SI S5120V3-54P-PWR-SI	Not supported
S5120V3-SI switch series (except S5120V3-36F-SI, S5120V3-28P-HPWR-SI, and S5120V3-54P-PWR-SI)	Not supported
S5120V3-LI switch series	Not supported
S3600V3-EI switch series	Not supported
S3600V3-SI switch series	Not supported
S3100V3-EI switch series S3100V3-SI switch series	Not supported
S5110V2 switch series	Not supported
S5110V2-SI switch series	Not supported
S5000V3-EI switch series S5000V5-EI switch series	Not supported
S5000E-X switch series S5000X-EI switch series	Not supported
E128C E152C E500C switch series E500D switch series	Not supported
MS4320V2 switch series MS4320V3 switch series MS4300V2 switch series MS4320 switch series MS4200 switch series	Not supported
WS5850-WiNet switch series	Not supported
WS5820-WiNet switch series WS5810-WiNet switch series	Not supported
WAS6000 switch series	Not supported
IE4300-12P-AC IE4300-12P-PWR IE4300-M switch series IE4320 switch series	Not supported

Restrictions and guidelines

When you configure basic IGMP features, follow these restrictions and guidelines:

· The protocol packets of different IGMP versions are different in structures and types. For IGMP to operate correctly, you must enable the same IGMP version for all switches on the same subnet.

· You must configure the same multicast group policy for all switches on the same subnet.

· By default, Ethernet interfaces, VLAN interfaces, and aggregate interfaces are shut down. You must first use the undo shutdown command to bring them up. This example assumes that all these interfaces are already up.

Procedures

1. Assign an IP address and subnet mask to each interface, as shown in Figure 1. (Details not shown.)

2. Configure OSPF on the switches in the PIM-DM domain. (Details not shown.)

3. Configure Switch A:

# Enable IP multicast routing.

<SwitchA> system-view

[SwitchA] multicast routing

[SwitchA-mrib] quit

# Enable IGMP on the receiver-side interface VLAN-interface 100.

[SwitchA] interface vlan-interface 100

[SwitchA-Vlan-interface100] igmp enable

[SwitchA-Vlan-interface100] quit

# Enable PIM-DM on VLAN-interface 101.

[SwitchA] interface vlan-interface 101

[SwitchA-Vlan-interface101] pim dm

[SwitchA-Vlan-interface101] quit

4. Configure Switch B:

# Create ACL 2001 to permit IGMP reports for multicast group 224.1.1.1.

<SwitchB> system-view

[SwitchB] acl basic 2001

[SwitchB-acl-ipv4-basic-2001] rule permit source 224.1.1.1 0

[SwitchB-acl-ipv4-basic-2001] quit

# Enable IP multicast routing.

[SwitchB] multicast routing

[SwitchB-mrib] quit

# Enable IGMP on the receiver-side interface VLAN-interface 200.

[SwitchB] interface vlan-interface 200

[SwitchB-Vlan-interface200] igmp enable

# Configure a multicast group policy that uses ACL 2001.

[SwitchB-Vlan-interface200] igmp group-policy 2001

[SwitchB-Vlan-interface200] quit

# Enable PIM-DM on VLAN-interface 201.

[SwitchB] interface vlan-interface 201

[SwitchB-Vlan-interface201] pim dm

[SwitchB-Vlan-interface201] quit

5. Configure Switch C:

# Create ACL 2001 to permit IGMP reports for multicast group 224.1.1.1.

<SwitchC> system-view

[SwitchC] acl basic 2001

[SwitchC-acl-ipv4-basic-2001] rule permit source 224.1.1.1 0

[SwitchC-acl-ipv4-basic-2001] quit

# Enable IP multicast routing.

[SwitchC] multicast routing

[SwitchC-mrib] quit

# Enable IGMP on the receiver-side interface VLAN-interface 200.

[SwitchC] interface vlan-interface 200

[SwitchC-Vlan-interface200] igmp enable

# Configure a multicast group policy that uses ACL 2001.

[SwitchC-Vlan-interface200] igmp group-policy 2001

[SwitchC-Vlan-interface200] quit

# Enable PIM-DM on VLAN-interface 202.

[SwitchC] interface vlan-interface 202

[SwitchC-Vlan-interface202] pim dm

[SwitchC-Vlan-interface202] quit

Verifying the configuration

1. Verify that hosts in N1 can join the multicast groups 224.1.1.1 and 224.1.1.2:

# Send IGMP reports from Host A (10.110.1.10) to join the multicast groups 224.1.1.1 and 224.1.1.2. (Details not shown.)

# Display information about IGMP groups that hosts have dynamically joined on Switch A.

[SwitchA] display igmp group

IGMP groups in total: 2

Vlan-interface100 (10.110.1.1):

IGMP groups reported in total: 2

Group address Last reporter Uptime Expires

224.1.1.1 10.110.1.10 00:02:04 00:01:15

224.1.1.2 10.110.1.10 00:02:00 00:01:19

The output shows that Host A has joined the multicast groups 224.1.1.1 and 224.1.1.2.

2. Verify that hosts in N2 can join only multicast group 224.1.1.1:

# Send IGMP reports from Host C (10.110.2.10) to join the multicast groups 224.1.1.1 and 224.1.1.2. (Details not shown.)

# Display information about IGMP groups that hosts have dynamically joined on Switch B.

[SwitchB] display igmp group

IGMP groups in total: 1

Vlan-interface200(10.110.2.1):

IGMP groups reported in total: 1

Group address Last reporter Uptime Expires

224.1.1.1 10.110.2.10 04:36:03 00:01:23

# Display information about IGMP groups that hosts have dynamically joined on Switch C.

[SwitchC] display igmp group

IGMP groups in total: 1

Vlan-interface200(10.110.2.2):

IGMP groups reported in total: 1

Group address Last reporter Uptime Expires

224.1.1.1 10.110.2.10 04:21:03 00:01:13

The output shows that Switch B and Switch C each have IGMP information about only the multicast group, 224.1.1.1. The multicast group policy has taken effect, and hosts in N2 can join only multicast group 224.1.1.1.

Configuration files

IMPORTANT:

Support for the port link-mode bridge command depends on the device model.

· Switch A:

vlan 100 to 101

interface Vlan-interface100

ip address 10.110.1.1 255.255.255.0

igmp enable

interface Vlan-interface101

ip address 10.111.1.1 255.255.255.0

pim dm

interface GigabitEthernet1/0/1

port link-mode bridge

port access vlan 100

interface GigabitEthernet1/0/2

port link-mode bridge

port access vlan 101

multicast routing

· Switch B:

acl basic 2001

rule 0 permit source 224.1.1.1 0

vlan 200 to 201

interface Vlan-interface200

ip address 10.110.2.1 255.255.255.0

igmp enable

igmp group-policy 2001

interface Vlan-interface201

ip address 10.111.2.1 255.255.255.0

pim dm

interface GigabitEthernet1/0/1

port link-mode bridge

port access vlan 200

interface GigabitEthernet1/0/2

port link-mode bridge

port access vlan 201

multicast routing

· Switch C:

acl basic 2001

rule 0 permit source 224.1.1.1 0

vlan 200

vlan 202

interface Vlan-interface200

ip address 10.110.2.2 255.255.255.0

igmp enable

igmp group-policy 2001

interface Vlan-interface202

ip address 10.111.3.1 255.255.255.0

pim dm

interface GigabitEthernet1/0/1

port link-mode bridge

port access vlan 200

interface GigabitEthernet1/0/2

port link-mode bridge

port access vlan 202

multicast routing

Example: Configuring IGMP static group members

Network configuration

As shown in Figure 2:

· OSPF and PIM-DM run on the network.

· VOD streams are sent in multicast. Hosts of different organizations form stub networks N1 and N2.

· IGMPv2 runs between Switch A and N1, and between the other two switches and N2. Switch A acts as the IGMP querier in N1. Switch B acts as the IGMP querier in N2 because it has a lower IP address.

Configure the switches to meet the following requirements:

· Hosts in N1 can join any multicast groups, and Host A can permanently receive multicast data addressed to multicast group 224.1.1.2.

· Hosts in N2 can join only multicast group 224.1.1.1.

Figure 2 Network diagram

Analysis

For Host A to permanently receive multicast data addressed to the group 224.1.1.2, configure VLAN-interface 100 on Switch A as a static member of the multicast group.

To limit the multicast groups that hosts can join, create an IPv4 basic ACL and specify the multicast groups that you want the hosts to join.

Applicable hardware and software versions

The following matrix shows the hardware and software versions to which this configuration example is applicable:

Hardware	Software version
S6812 switch series S6813 switch series	Release 66xx
S6550XE-HI switch series	Release 6008 and later
S6525XE-HI switch series	Release 6008 and later
S5850 switch series	Release 8005 and later
S5570S-EI switch series	Release 11xx
S5560X-EI switch series	Release 63xx, Release 65xx, Release 66xx
S5560X-HI switch series	Release 63xx, Release 65xx, Release 66xx
S5500V2-EI switch series	Release 63xx, Release 65xx, Release 66xx
MS4520V2-30F switch	Release 63xx, Release 65xx, Release 66xx
MS4520V2-30C switch MS4520V2-54C switch	Release 65xx, Release 66xx
MS4520V2-28S switch MS4520V2-24TP switch	Release 63xx
S6520X-HI switch series S6520X-EI switch series	Release 63xx, Release 65xx, Release 66xx
S6520X-SI switch series S6520-SI switch series	Release 63xx, Release 65xx, Release 66xx
S5000-EI switch series	Release 63xx, Release 65xx, Release 66xx
MS4600 switch series	Release 63xx, Release 65xx, Release 66xx
ES5500 switch series	Release 63xx, Release 65xx, Release 66xx
S5560S-EI switch series S5560S-SI switch series	Release 63xx
S5500V3-24P-SI S5500V3-48P-SI	Release 63xx
S5500V3-SI switch series (except S5500V3-24P-SI and S5500V3-48P-SI)	Not supported
S5170-EI switch series	Not supported
S5130S-HI switch series S5130S-EI switch series S5130S-SI switch series S5130S-LI switch series	Not supported
S5120V2-SI switch series S5120V2-LI switch series	Not supported
S5120V3-EI switch series	Not supported
S5120V3-36F-SI S5120V3-28P-HPWR-SI S5120V3-54P-PWR-SI	Not supported
S5120V3-SI switch series (except S5120V3-36F-SI, S5120V3-28P-HPWR-SI, and S5120V3-54P-PWR-SI)	Not supported
S5120V3-LI switch series	Not supported
S3600V3-EI switch series	Not supported
S3600V3-SI switch series	Not supported
S3100V3-EI switch series S3100V3-SI switch series	Not supported
S5110V2 switch series	Not supported
S5110V2-SI switch series	Not supported
S5000V3-EI switch series S5000V5-EI switch series	Not supported
S5000E-X switch series S5000X-EI switch series	Not supported
E128C E152C E500C switch series E500D switch series	Not supported
MS4320V2 switch series MS4320V3 switch series MS4300V2 switch series MS4320 switch series MS4200 switch series	Not supported
WS5850-WiNet switch series	Release 63xx
WS5820-WiNet switch series WS5810-WiNet switch series	Not supported
WAS6000 switch series	Not supported
IE4300-12P-AC IE4300-12P-PWR IE4300-M switch series IE4320 switch series	Not supported

Restrictions and guidelines

When you configure IGMP static group member ports, follow these restrictions and guidelines:

· The protocol packets of different IGMP versions are different in structures and types. For IGMP to operate correctly, specify the same IGMP version for all switches on the same subnet.

· You must configure the same multicast group policy for all switches on the same subnet.

Procedures

1. Assign an IP address and subnet mask to each interface, as shown in Figure 2. (Details not shown.)

2. Configure OSPF on the switches in the PIM-DM domain. (Details not shown.)

3. Configure Switch A:

# Enable IP multicast routing.

<SwitchA> system-view

[SwitchA] multicast routing

[SwitchA-mrib] quit

# Enable PIM-DM on VLAN-interface 101.

[SwitchA] interface vlan-interface 101

[SwitchA-Vlan-interface101] pim dm

[SwitchA-Vlan-interface101] quit

# Enable IGMP on the receiver-side interface VLAN-interface 100.

[SwitchA] interface vlan-interface 100

[SwitchA-Vlan-interface100] igmp enable

# Configure VLAN-interface 100 as a static member of multicast group 224.1.1.2.

[SwitchA-Vlan-interface100] igmp static-group 224.1.1.2

[SwitchA-Vlan-interface100] quit

4. Configure Switch B:

# Enable IP multicast routing.

<SwitchB> system-view

[SwitchB] multicast routing

[SwitchB-mrib] quit

# Enable PIM-DM on VLAN-interface 201.

[SwitchB] interface vlan-interface 201

[SwitchB-Vlan-interface201] pim dm

[SwitchB-Vlan-interface201] quit

# Create ACL 2001 to permit IGMP reports for multicast group 224.1.1.1.

[SwitchB] acl basic 2001

[SwitchB-acl-ipv4-basic-2001] rule permit source 224.1.1.1 0

[SwitchB-acl-ipv4-basic-2001] quit

# Enable IGMP on the receiver-side interface VLAN-interface 200.

[SwitchB] interface vlan-interface 200

[SwitchB-Vlan-interface200] igmp enable

# Configure a multicast group policy that uses ACL 2001.

[SwitchB-Vlan-interface200] igmp group-policy 2001

[SwitchB-Vlan-interface200] quit

5. Configure Switch C:

# Enable IP multicast routing.

<SwitchC> system-view

[SwitchC] multicast routing

[SwitchC-mrib] quit

# Enable PIM-DM on VLAN-interface 202.

[SwitchC] interface vlan-interface 202

[SwitchC-Vlan-interface202] pim dm

[SwitchC-Vlan-interface202] quit

# Create ACL 2001 to permit IGMP reports for multicast group 224.1.1.1.

[SwitchC] acl basic 2001

[SwitchC-acl-ipv4-basic-2001] rule permit source 224.1.1.1 0

[SwitchC-acl-ipv4-basic-2001] quit

# Enable IGMP on VLAN-interface 200.

[SwitchC] interface vlan-interface 200

[SwitchC-Vlan-interface200] igmp enable

# Configure a multicast group policy that uses ACL 2001.

[SwitchC-Vlan-interface200] igmp group-policy 2001

[SwitchC-Vlan-interface200] quit

Verifying the configuration

1. Verify that hosts in N1 can join the multicast groups 224.1.1.1 and 224.1.1.2:

# Send IGMP reports from Host A (10.110.1.10) to join the multicast groups 224.1.1.1 and 224.1.1.2. (Details not shown.)

# Display information about IGMP groups that hosts have dynamically joined on Switch A.

[SwitchA] display igmp group

IGMP groups in total: 2.

Vlan-interface100 (10.110.1.1):

IGMP groups reported in total: 2

Group address Last reporter Uptime Expires

224.1.1.1 10.110.1.10 00:02:04 00:01:15

224.1.1.2 10.110.1.10 00:02:00 00:01:19

The output shows that Host A has dynamically joined the multicast groups 224.1.1.1 and 224.1.1.2.

# Display information about IGMP groups that hosts have statically joined on Switch A.

[SwitchA] display igmp group static

Entries in total: 1

Group address Source address Interface Expires

224.1.1.2 0.0.0.0 Vlan100 Never

The output shows that Host A has statically joined multicast group 224.1.1.1 through VLAN-interface 100.

2. Verify that hosts in N2 can join only multicast group 224.1.1.1:

# Send IGMP reports from Host C (10.110.2.10) to join multicast groups 224.1.1.1 and 224.1.1.2. (Details not shown.)

# Display information about IGMP groups that hosts have dynamically joined on Switch B.

[SwitchB] display igmp group

IGMP groups in total: 1

Vlan-interface200(10.110.2.1):

IGMP groups reported in total: 1

Group address Last reporter Uptime Expires

224.1.1.1 10.110.2.10 04:36:03 00:01:23

# Display information about IGMP groups that hosts have dynamically joined on Switch C.

[SwitchC] display igmp group

IGMP groups in total: 1

Vlan-interface200(10.110.2.2):

IGMP groups reported in total: 1

Group address Last reporter Uptime Expires

224.1.1.1 10.110.2.10 04:21:03 00:01:13

The output shows that Switch B and Switch C each have information only about multicast group 224.1.1.1. The multicast group policy has taken effect, and hosts in N2 can join only multicast group 224.1.1.1.

Configuration files

IMPORTANT:

Support for the port link-mode bridge command depends on the device model.

· Switch A:

vlan 100 to 101

interface Vlan-interface100

ip address 10.110.1.1 255.255.255.0

igmp enable

igmp static-group 224.1.1.2

interface Vlan-interface101

ip address 10.111.1.1 255.255.255.0

pim dm

interface GigabitEthernet1/0/1

port link-mode bridge

port access vlan 100

interface GigabitEthernet1/0/2

port link-mode bridge

port access vlan 101

multicast routing

· Switch B:

acl basic 2001

rule 0 permit source 224.1.1.1 0

vlan 200 to 201

interface Vlan-interface200

ip address 10.110.2.1 255.255.255.0

igmp enable

igmp group-policy 2001

interface Vlan-interface201

ip address 10.111.2.1 255.255.255.0

pim dm

interface GigabitEthernet1/0/1

port link-mode bridge

port access vlan 200

interface GigabitEthernet1/0/2

port link-mode bridge

port access vlan 201

multicast routing

· Switch C:

acl basic 2001

rule 0 permit source 224.1.1.1 0

vlan 200

vlan 202

interface Vlan-interface200

ip address 10.110.2.2 255.255.255.0

igmp enable

igmp group-policy 2001

interface Vlan-interface202

ip address 10.111.3.1 255.255.255.0

pim dm

interface GigabitEthernet1/0/1

port link-mode bridge

port access vlan 200

interface GigabitEthernet1/0/2

port link-mode bridge

port access vlan 202

multicast routing

Example: Configuring IGMP SSM mappings

Network configuration

As shown in Figure 3:

· The SSM group range for the PIM-SSM domain is 232.1.1.0/24.

· Switch A and Switch B in the PIM-SSM domain run IGMPv3.

· Host A in N1 and Host B in N2 run IGMPv2, and they do not support IGMPv3. The other hosts in N1 and N2 run IGMPv3.

Configure IGMP SSM mappings on Switch A and Switch B to meet the following requirements:

· Hosts in N1 receive multicast data only from Source 1.

· Hosts in N2 receive multicast data only from Source 2.

Figure 3 Network diagram

Applicable hardware and software versions

The following matrix shows the hardware and software versions to which this configuration example is applicable:

Hardware	Software version
S6812 switch series S6813 switch series	Release 66xx
S6550XE-HI switch series	Release 6008 and later
S6525XE-HI switch series	Release 6008 and later
S5850 switch series	Release 8005 and later
S5570S-EI switch series	Release 11xx
S5560X-EI switch series	Release 63xx, Release 65xx, Release 66xx
S5560X-HI switch series	Release 63xx, Release 65xx, Release 66xx
S5500V2-EI switch series	Release 63xx, Release 65xx, Release 66xx
MS4520V2-30F switch	Release 63xx, Release 65xx, Release 66xx
MS4520V2-30C switch MS4520V2-54C switch	Release 65xx, Release 66xx
MS4520V2-28S switch MS4520V2-24TP switch	Release 63xx
S6520X-HI switch series S6520X-EI switch series	Release 63xx, Release 65xx, Release 66xx
S6520X-SI switch series S6520-SI switch series	Release 63xx, Release 65xx, Release 66xx
S5000-EI switch series	Release 63xx, Release 65xx, Release 66xx
MS4600 switch series	Release 63xx, Release 65xx, Release 66xx
ES5500 switch series	Release 63xx, Release 65xx, Release 66xx
S5560S-EI switch series S5560S-SI switch series	Release 63xx
S5500V3-24P-SI S5500V3-48P-SI	Release 63xx
S5500V3-SI switch series (except S5500V3-24P-SI and S5500V3-48P-SI)	Not supported
S5170-EI switch series	Not supported
S5130S-HI switch series S5130S-EI switch series S5130S-SI switch series S5130S-LI switch series	Not supported
S5120V2-SI switch series S5120V2-LI switch series	Not supported
S5120V3-EI switch series	Not supported
S5120V3-36F-SI S5120V3-28P-HPWR-SI S5120V3-54P-PWR-SI	Not supported
S5120V3-SI switch series (except S5120V3-36F-SI, S5120V3-28P-HPWR-SI, and S5120V3-54P-PWR-SI)	Not supported
S5120V3-LI switch series	Not supported
S3600V3-EI switch series	Not supported
S3600V3-SI switch series	Not supported
S3100V3-EI switch series S3100V3-SI switch series	Not supported
S5110V2 switch series	Not supported
S5110V2-SI switch series	Not supported
S5000V3-EI switch series S5000V5-EI switch series	Not supported
S5000E-X switch series S5000X-EI switch series	Not supported
E128C E152C E500C switch series E500D switch series	Not supported
MS4320V2 switch series MS4320V3 switch series MS4300V2 switch series MS4320 switch series MS4200 switch series	Not supported
WS5850-WiNet switch series	Release 63xx
WS5820-WiNet switch series WS5810-WiNet switch series	Not supported
WAS6000 switch series	Not supported
IE4300-12P-AC IE4300-12P-PWR IE4300-M switch series IE4320 switch series	Not supported

Restrictions and guidelines

By default, Ethernet interfaces, VLAN interfaces, and aggregate interfaces are shut down. You must use the undo shutdown command to bring them up. This example assumes that all these interfaces are already up.

Procedures

1. Assign an IP address and subnet mask to each interface, as shown in Figure 3. (Details not shown.)

2. Configure OSPF on the switches in the PIM-SSM domain. (Details not shown.)

3. Enable IP multicast routing and enable PIM-SM:

# On Switch A, enable IP multicast routing, and enable PIM-SM on VLAN-interface 200.

<SwitchA> system-view

[SwitchA] multicast routing

[SwitchA-mrib] quit

[SwitchA] interface vlan-interface 200

[SwitchA-Vlan-interface200] pim sm

[SwitchA-Vlan-interface200] quit

# Configure Switch B in the same way Switch A is configured. (Details not shown.)

# On Router C, enable IP multicast routing, and enable PIM-SM on each interface.

<SwitchC> system-view

[SwitchC] multicast routing

[SwitchC-mrib] quit

[SwitchC] interface vlan-interface 100

[SwitchC-Vlan-interface100] pim sm

[SwitchC-Vlan-interface100] quit

[SwitchC] interface vlan-interface 200

[SwitchC-Vlan-interface200] pim sm

[SwitchC-Vlan-interface200] quit

[SwitchC] interface vlan-interface 300

[SwitchC-Vlan-interface300] pim sm

[SwitchC-Vlan-interface300] quit

4. On Switch C, configure VLAN-interface 200 as a C-BSR and a C-RP:

[SwitchC] pim

[SwitchC-pim] c-bsr 192.168.1.1

[SwitchC-pim] c-rp 192.168.1.1

[SwitchC-pim] quit

5. Configure IGMPv3 on the receiver-side interfaces:

# On Switch A, enable IGMP, and specify IGMP version 3 on VLAN-interface 201.

[SwitchA] interface vlan-interface201

[SwitchA-Vlan-interface201] igmp enable

[SwitchA-Vlan-interface201] igmp version 3

[SwitchA-Vlan-interface201] quit

# Configure Switch B in the same way Switch A is configured. (Details not shown.)

6. Configure the SSM group range:

# On Switch A, configure the SSM group range as 232.1.1.0/24.

[SwitchA] acl basic 2000

[SwitchA-acl-ipv4-basic-2000] rule permit source 232.1.1.0 0.0.0.255

[SwitchA-acl-ipv4-basic-2000] quit

[SwitchA] pim

[SwitchA-pim] ssm-policy 2000

[SwitchA-pim] quit

# Configure Switch B and Switch C in the same way Switch A is configured. (Details not shown.)

7. Configure IGMP SSM mappings:

# On Switch A, configure an IGMP SSM mapping with multicast source 10.110.5.100 and multicast group range 232.1.1.0/24 specified in ACL 2000.

[SwitchA] igmp

[SwitchA-igmp] ssm-mapping 10.110.5.100 2000

[SwitchA-igmp] quit

# On Switch B, configure an IGMP SSM mapping with multicast source 10.110.5.101 and multicast group range 232.1.1.0/24 specified in ACL 2000.

[SwitchB] igmp

[SwitchB-igmp] ssm-mapping 10.110.5.101 2000

[SwitchB-igmp] quit

Verifying the configuration

# Send IGMPv2 reports from Host A and Host C to join multicast group 232.1.1.1. (Details not shown.)

# Send multicast data from Source 1 and Source 2 to multicast group 232.1.1.1. (Details not shown.)

# Display IGMP SSM mappings for multicast group 232.1.1.1 on Switch A.

[SwitchA] display igmp ssm-mapping 232.1.1.1

Group: 232.1.1.1

Source list:

10.110.5.100

The output shows that multicast group 232.1.1.1 is associated with Source 1 (10.110.5.100). Switch A will translate (0.0.0.0, 232.1.1.1) in IGMPv2 reports to (10.110.5.100, 232.1.1.1).

# Display the PIM routing table on Switch A.

[SwitchA] display pim routing-table

Total 0 (*, G) entries; 1 (S, G) entries

(10.110.5.100, 232.1.1.1)

Protocol: pim-ssm, Flag:

UpTime: 00:13:25

Upstream interface: Vlan-interface200

Upstream neighbor: 192.168.1.1

RPF prime neighbor: 192.168.1.1

Downstream interface(s) information:

Total number of downstreams: 1

1: Vlan-interface201

Protocol: igmp, UpTime: 02:54:43, Expires: 00:02:47

The output shows that Switch A has the (10.110.5.100, 232.1.1.1) entry.

# Display IGMP SSM mappings for multicast group 232.1.1.1 on Switch B.

[SwitchB] display igmp ssm-mapping 232.1.1.1

Group: 232.1.1.1

Source list:

10.110.5.101

The output shows that multicast group 232.1.1.1 is associated with Source 2 (10.110.5.101). Switch B will translate (0.0.0.0, 232.1.1.1) in IGMPv2 reports to (10.101.5.101, 232.1.1.1).

# Display the PIM routing table on Switch B.

[SwitchB] display pim routing-table

Total 0 (*, G) entries; 1 (S, G) entries

(10.110.5.101, 232.1.1.1)

Protocol: pim-ssm, Flag:

UpTime: 00:12:16

Upstream interface: Vlan-interface300

Upstream neighbor: 192.168.2.1

RPF prime neighbor: 192.168.2.1

Downstream interface(s) information:

Total number of downstreams: 1

1: Vlan-interface301

Protocol: igmp, UpTime: 02:54:43, Expires: 00:02:47

The output shows that Switch B has the (10.110.5.101, 232.1.1.1) entry.

Configuration files

IMPORTANT:

Support for the port link-mode bridge command depends on the device model.

· Switch A:

interface Vlan-interface200

pim sm

interface Vlan-interface201

igmp enable

igmp version 3

multicast routing

pim

ssm-policy 2000

igmp

ssm-mapping 10.110.5.100 2000

acl basic 2000

rule 0 permit source 232.1.1.0 0.0.0.255

· Switch B:

interface Vlan-interface300

pim sm

interface Vlan-interface301

igmp enable

igmp version 3

multicast routing

pim

ssm-policy 2000

igmp

ssm-mapping 10.110.5.100 2000

acl basic 2000

rule 0 permit source 232.1.1.0 0.0.0.255

· Switch C:

interface Vlan-interface100

pim sm

interface Vlan-interface200

pim sm

interface Vlan-interface200

pim sm

multicast routing

pim

c-bsr 192.168.1.1

c-rp 192.168.1.1

H3C Fixed Port Campus Switches Configuration Examples-6W103

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