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 M-LAG and Layer 3 multicast.

Example: Configuring Layer 3 IPv4 multicast on an M-LAG system attached to multicast sources

Network configuration

As shown in Figure 1:

· OSPF runs on the network.

· VOD streams are sent to receiver hosts in multicast. The receivers of different subnets form stub networks, and a minimum of one receiver host exist on each stub network.

· The entire PIM-SM domain contains only one BSR.

· Device C is a Layer 2 device attached to the multicast source. Device A and Device B are virtualized into an M-LAG system, which is connected to Device C through a multichassis aggregate link. VLAN-interface 20 interfaces on the M-LAG system are the gateway for the multicast source.

· Host A is a multicast data receiver attached to Device D.

· The Twenty-FiveGigE 1/0/3 interfaces on Device A and Device B are excluded from the shutdown action by M-LAG MAD to set up the keepalive link.

· A VRRP group is configured on VLAN-interface 20 interfaces. In the VRRP group, Device A is the master.

· M-LAG interfaces on Device A and Device B permit packets from VLAN 20 to pass through. PIM is enabled on VLAN-interface 20 of Device A and Device B.

· IP multicast routing is enabled on Device and Device B.

Figure 1 Network diagram

Device	Interface	IP address	Device	Interface	IP address
Device A	Vlan-int20	20.0.0.1/24	Device D	Vlan-int10	100.0.0.2/24
	WGE1/0/3	200.0.0.1/24		Vlan-int30	300.0.0.2/24
	Vlan-int10	100.0.0.1/24		Vlan-int40	200.0.0.2/24
	Loop0	1.1.1.1
Device B	Vlan-int20	20.0.0.1/24
	WGE1/0/3	200.0.0.2/24
	Vlan-int30	300.0.0.1/24
	Loop0	2.2.2.2

Applicable hardware and software versions

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

Hardware	Software version
S6550X-HI switch series	Release 1213P51 and later
S6880 switch series	Release 1213P51 and later
S9820-8M switch	Release 1213P51 and later
S5580X-HI switch series	Release 1213P50 and later
S5580X-EI switch series	Release 1213P50 and later
S5580S-EI switch series	Release 1213P50 and later

Procedures

Assigning IP addresses and configuring unicast routing

Assign an IP address and subnet mask to each interface as shown in Figure 1, and configure OSPF on the devices in the PIM-SM domain. (Details not shown.)

Configuring Device A

# Configure the M-LAG system settings.

<DeviceA> system-view

[DeviceA] m-lag system-mac 1-1-1

[DeviceA] m-lag system-number 1

[DeviceA] m-lag system-priority 123

# Configure M-LAG keepalive packet parameters.

[DeviceA] m-lag keepalive ip destination 200.0.0.2 source 200.0.0.1

# Exclude the interface used for M-LAG keepalive detection (Twenty-FiveGigE 1/0/3) from the shutdown action by M-LAG MAD.

[DeviceA] m-lag mad exclude interface twenty-fivegige 1/0/3

# Create Layer 2 dynamic aggregate interface Bridge-Aggregation 1.

[DeviceA] interface bridge-aggregation 1

[DeviceA-Bridge-Aggregation1] link-aggregation mode dynamic

[DeviceA-Bridge-Aggregation1] quit

# Assign Twenty-FiveGigE 1/0/1 and Twenty-FiveGigE 1/0/2 to aggregation group 1.

[DeviceA] interface twenty-fivegige 1/0/1

[DeviceA-Twenty-FiveGigE1/0/1] port link-aggregation group 1

[DeviceA-Twenty-FiveGigE1/0/1] quit

[DeviceA] interface twenty-fivegige 1/0/2

[DeviceA-Twenty-FiveGigE1/0/2] port link-aggregation group 1

[DeviceA-Twenty-FiveGigE1/0/2] quit

# Create Layer 2 dynamic aggregate interface Bridge-Aggregation 2.

[DeviceA] interface bridge-aggregation 2

[DeviceA-Bridge-Aggregation2] link-aggregation mode dynamic

[DeviceA-Bridge-Aggregation2] quit

# Assign Twenty-FiveGigE 1/0/5 and Twenty-FiveGigE 1/0/6 to aggregation group 1.

[DeviceA] interface twenty-fivegige 1/0/5

[DeviceA-Twenty-FiveGigE1/0/5] port link-aggregation group 2

[DeviceA-Twenty-FiveGigE1/0/5] quit

[DeviceA] interface twenty-fivegige 1/0/6

[DeviceA-Twenty-FiveGigE1/0/6] port link-aggregation group 2

[DeviceA-Twenty-FiveGigE1/0/6] quit

# Configure Bridge-Aggregation 1 as a trunk port, assign it to all VLANs, and specify it as the IPP.

[DeviceA] interface bridge-aggregation 1

[DeviceA-Bridge-Aggregation1] port link-type trunk

[DeviceA-Bridge-Aggregation1] port trunk permit vlan all

[DeviceA-Bridge-Aggregation1] port m-lag peer-link 1

[DeviceA-Bridge-Aggregation1] quit

# Configure Bridge-Aggregation 2 as a trunk port, and assign it to VLAN 20 and an M-LAG group.

[DeviceA] interface bridge-aggregation 2

[DeviceA-Bridge-Aggregation2] port link-type trunk

[DeviceA-Bridge-Aggregation2] port trunk permit vlan 20

[DeviceA-Bridge-Aggregation2] port m-lag group 1

[DeviceA-Bridge-Aggregation2] quit

# Configure VRRP group 1 on VLAN-interface 20, and set the priority of Device A to 200 for it to be the master in the VRRP group.

[DeviceA] vlan 20

[DeviceA-vlan20] quit

[DeviceA] interface vlan-interface 20

[DeviceA-Vlan-interface20] vrrp vrid 1 virtual-ip 100.0.0.10

[DeviceA-Vlan-interface20] vrrp vrid 1 priority 200

[DeviceA-Vlan-interface20] quit

# Enable IP multicast routing, enable IGMP and PIM on VLAN-interface 10, and enable PIM-SM on other interfaces as required.

[DeviceA] multicast routing

[DeviceA-mrib] quit

[DeviceA] interface vlan-interface 10

[DeviceA-Vlan-interface10] pim sm

[DeviceA-Vlan-interface10] quit

[DeviceA] interface vlan-interface 20

[DeviceA-Vlan-interface20] pim sm

[DeviceA-Vlan-interface20] quit

[DeviceA] interface loopback 0

[DeviceA-LoopBack0] pim sm

[DeviceA-LoopBack0] quit

# Specify the IP address of Loopback 0 as a C-RP and a C-BSR.

[DeviceA] pim

[DeviceA-pim] c-rp 1.1.1.1

[DeviceA-pim] c-bsr 1.1.1.1

[DeviceA-pim] quit

Configuring Device B

Configure Device B in the same way you configure Device A. (Details not shown.)

Configuring Device C

# Create Layer 2 dynamic aggregate interface Bridge-Aggregation 2.

<DeviceC> system-view

[DeviceC] interface bridge-aggregation 2

[DeviceC-Bridge-Aggregation2] link-aggregation mode dynamic

[DeviceC-Bridge-Aggregation2] quit

# Assign Twenty-FiveGigE 1/0/1 through Twenty-FiveGigE 1/0/4 to aggregation group 1.

[DeviceC] interface range twenty-fivegige 1/0/1 to twenty-fivegige 1/0/4

[DeviceC-if-range] port link-aggregation group 1

[DeviceC-if-range] quit

# Configure Bridge-Aggregation 2 as a trunk port, and assign it to VLAN 20.

[DeviceC] interface bridge-aggregation 1

[DeviceC-Bridge-Aggregation1] port link-type trunk

[DeviceC-Bridge-Aggregation1] port trunk permit vlan 20

[DeviceC-Bridge-Aggregation1] quit

# Assign Twenty-FiveGigE 1/0/5 to VLAN 20.

[DeviceC] interface twenty-fivegige 1/0/5

[DeviceC-Twenty-FiveGigE1/0/5] port access vlan 20

[DeviceC-Twenty-FiveGigE1/0/5] quit

Configuring Device D

# Assign Twenty-FiveGigE 1/0/1, Twenty-FiveGigE 1/0/2, and Twenty-FiveGigE 1/0/3 to VLAN 10, VLAN 30, and VLAN 40, respectively.

<DeviceD> system-view

[DeviceD] vlan 10

[DeviceD-vlan10] quit

[DeviceD] interface twenty-fivegige1/0/1

[DeviceD-Twenty-FiveGigE1/0/1] port access vlan 10

[DeviceD-Twenty-FiveGigE1/0/1] quit

[DeviceD] vlan 40

[DeviceD-vlan40] quit

[DeviceD] interface twenty-fivegige1/0/3

[DeviceD-Twenty-FiveGigE1/0/3] port access vlan 40

[DeviceD] vlan 30

[DeviceD-vlan30] quit

[DeviceD] interface twenty-fivegige1/0/2

[DeviceD-Twenty-FiveGigE1/0/2] port access vlan 30

# Enable IP multicast routing, and enable PIM-SM on VLAN-interface 10 and VLAN-interface 30.

[DeviceD] multicast routing

[DeviceD-mrib] quit

[DeviceD] interface vlan-interface 10

[DeviceD-Vlan-interface10] pim sm

[DeviceD-Vlan-interface10] quit

[DeviceD] vlan 30

[DeviceD-vlan30] quit

[DeviceD] interface vlan-interface 30

[DeviceD-Vlan-interface10] pim sm

[DeviceD-Vlan-interface10] quit

# Enable IGMPv2 on VLAN-interface 40.

[DeviceD] interface vlan-interface 40

[DeviceD-Vlan-interface40] igmp enable

[DeviceD-Vlan-interface40] igmp version 2

[DeviceD-Vlan-interface40] quit

Verifying the configuration

# Verify that Device B sends and receives keepalive packets correctly.

<DeviceB> display m-lag keepalive

Neighbor keepalive link status (cause): Up

Neighbor is alive for: 176 s 237 ms

Keepalive packet transmission status:

Sent: Successful

Received: Successful

Last received keepalive packet information:

Source IP address: 200.0.0.1

Time: 2021/12/21 15:12:43

Action: Accept

Distributed relay keepalive parameters:

Destination IP address: 200.0.0.1

Source IP address: 200.0.0.2

Keepalive UDP port : 6400

Keepalive VPN name : N/A

Keepalive interval : 1000 ms

Keepalive timeout : 5 sec

Keepalive hold time: 3 sec

# Verify that interfaces used by M-LAG operate correctly on Device B.

<DeviceB> display m-lag summary

Flags: A -- Aggregate interface down, B -- No peer DR interface configured

C -- Configuration consistency check failed

IPP: BAGG1

IPP state (cause): UP

Keepalive link state (cause): UP

DR interface information

DR interface DR group Local state (cause) Peer state Remaining down time(s)

BAGG2 1 UP UP -

# Verify that the M-LAG interface on Device B operates correctly.

<DeviceB> display link-aggregation verbose bridge-aggregation 2

Loadsharing Type: Shar -- Loadsharing, NonS -- Non-Loadsharing

Port Status: S -- Selected, U -- Unselected, I -- Individual

Port: A -- Auto port, M -- Management port, R -- Reference port

Flags: A -- LACP_Activity, B -- LACP_Timeout, C -- Aggregation,

D -- Synchronization, E -- Collecting, F -- Distributing,

G -- Defaulted, H -- Expired

Aggregate Interface: Bridge-Aggregation2

Creation Mode: Manual

Aggregation Mode: Dynamic

Loadsharing Type: Shar

Management VLANs: None

System ID: 0x7b, 0001-0001-0001

Local:

Port Status Priority Index Oper-Key Flag

WGE1/0/5(R) S 32768 32770 40001 {ACDEF}

WGE1/0/6 S 32768 32770 40001 {ACDEF}

Remote:

Actor Priority Index Oper-Key SystemID Flag

WGE1/0/5 32768 2 1 0x8000, 84c4-42e5-0300 {ACDEF}

WGE1/0/6 32768 2 1 0x8000, 84c4-42e5-0300 {ACDEF}

# Verify that the IGMP group information on Device D is correct.

<DeviceD> display igmp group

IGMP groups in total: 1

Vlan-interface40(100.0.0.2):

IGMP groups reported in total: 1

Group address Last reporter Uptime Expires

225.0.0.1 100.0.0.10 00:02:04 00:01:15

# Verify that PIM routing entries have been created on Device B.

<DeviceB> display pim routing-table

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

(*, 225.0.0.1)

RP: 2.2.2.2 (local)

Protocol: pim-sm, Flag: WC

UpTime: 00:00:20

Upstream interface: Register-Tunnel0

Upstream neighbor: NULL

RPF prime neighbor: NULL

Downstream interface information:

Total number of downstream interfaces: 1

1: Vlan-interface30

Protocol: pim-sm, UpTime: 00:00:20, Expires: -

(20.0.0.2, 225.0.0.1)

RP: 2.2.2.2 (local)

Protocol: pim-sm, Flag: SPT ACT 2MVPN

UpTime: 00:00:19

Upstream interface: Vlan-interface20

Upstream neighbor: NULL

RPF prime neighbor: NULL

Downstream interface information:

Total number of downstream interfaces: 1

1: Vlan-interface30

Protocol: pim-sm, UpTime: 00:00:19, Expires: -

# Verify that multicast forwarding entries have been created on Device B.

<DeviceB> display multicast forwarding-table

Total 1 entries, 1 matched

00001. (20.0.0.2, 225.0.0.1)

Flags: 0x0

Uptime: 00:00:55, Timeout in: 00:03:18

Incoming interface: Vlan-interface20

List of 1 outgoing interfaces:

1: Vlan-interface30

Matched 1293 packets(36204 bytes), Wrong If 0 packets

Forwarded 1291 packets(36148 bytes)

# Verify that Device A does not create PIM routing entries or multicast forwarding entries, which indicates that Device B forwards all multicast traffic to the receiver. (Details not shown.)

Configuration files

· Device A:

sysname DeviceA

ospf 1

router-id 2.2.2.2

area 0.0.0.0

vlan 1

vlan 10

vlan 20

interface Bridge-Aggregation1

port link-type trunk

port trunk permit vlan all

link-aggregation mode dynamic

port m-lag peer-link 1

interface Bridge-Aggregation2

port link-type trunk

port trunk permit vlan 1 20

link-aggregation mode dynamic

port m-lag group 1

interface LoopBack0

ospf 1 area 0.0.0.0

pim sm

ip address 1.1.1.1 255.255.255.255

interface Vlan-interface10

ospf 1 area 0.0.0.0

pim sm

ip address 100.0.0.1 255.255.255.0

interface Vlan-interface20

ospf 1 area 0.0.0.0

pim sm

ip address 20.0.0.1 255.255.255.0

vrrp vrid 1 virtual-ip 100.0.0.10

vrrp vrid 1 priority 200

interface Twenty-FiveGigE1/0/3

ospf 1 area 0.0.0.0

ip address 200.0.0.1 255.255.255.0

interface Twenty-FiveGigE1/0/5

port link-type trunk

port trunk permit vlan 1 20

port link-aggregation group 2

interface Twenty-FiveGigE1/0/6

port link-type trunk

port trunk permit vlan 1 20

port link-aggregation group 2

interface Twenty-FiveGigE1/0/4

port access vlan 10

interface Twenty-FiveGigE1/0/1

port link-type trunk

port trunk permit vlan all

port link-aggregation group 1

interface Twenty-FiveGigE1/0/2

port link-type trunk

port trunk permit vlan all

port link-aggregation group 1

multicast routing

pim

c-bsr 1.1.1.1

c-rp 1.1.1.1

m-lag system-mac 0001-0001-0001

m-lag system-number 1

m-lag system-priority 123

m-lag keepalive ip destination 200.0.0.2 source 200.0.0.1

m-lag mad exclude interface Twenty-FiveGigE1/0/3

· Device B:

sysname DeviceB

ospf 1

router-id 3.3.3.3

area 0.0.0.0

area 0.0.0.9

vlan 20

vlan 30

interface Bridge-Aggregation1

port link-type trunk

port trunk permit vlan all

link-aggregation mode dynamic

port m-lag peer-link 1

interface Bridge-Aggregation2

port link-type trunk

port trunk permit vlan 1 20

link-aggregation mode dynamic

port m-lag group 1

interface LoopBack0

ospf 1 area 0.0.0.0

pim sm

ip address 2.2.2.2/32

interface Vlan-interface20

ospf 1 area 0.0.0.0

pim sm

ip address 20.0.0.1 255.255.255.0

vrrp vrid 1 virtual-ip 100.0.0.10

vrrp vrid 1 priority 100

interface Vlan-interface30

ospf 1 area 0.0.0.0

pim sm

ip address 300.0.0.1 255.255.255.0

interface Twenty-FiveGigE1/0/3

ospf 1 area 0.0.0.0

ip address 200.0.0.2 255.255.255.0

interface Twenty-FiveGigE1/0/5

port link-type trunk

port trunk permit vlan 1 20

port link-aggregation group 2

interface Twenty-FiveGigE1/0/6

port link-type trunk

port trunk permit vlan 1 20

port link-aggregation group 2

interface Twenty-FiveGigE1/0/4

port access vlan 30

interface Twenty-FiveGigE1/0/1

port link-type trunk

port trunk permit vlan all

port link-aggregation group 1

interface Twenty-FiveGigE1/0/2

port link-type trunk

port trunk permit vlan all

port link-aggregation group 1

multicast routing

pim

c-bsr 1.1.1.1

c-rp 1.1.1.1

m-lag system-mac 0001-0001-0001

m-lag system-number 2

m-lag system-priority 123

m-lag keepalive ipv6 destination 200.0.0.1 source 200.0.0.2

m-lag mad exclude interface Twenty-FiveGigE1/0/3

· Device C:

sysname DeviceC

vlan 1

vlan 20

interface LoopBack1

ip address 3.3.3.3 255.255.255.255

interface Bridge-Aggregation2

port link-type trunk

port trunk permit vlan 1 20

link-aggregation mode dynamic

interface Twenty-FiveGigE1/0/5

port access vlan 20

interface Twenty-FiveGigE1/0/1

port link-type trunk

port trunk permit vlan 1 20

port link-aggregation group 2

interface Twenty-FiveGigE1/0/2

port link-type trunk

port trunk permit vlan 1 20

port link-aggregation group 2

interface Twenty-FiveGigE1/0/3

port link-type trunk

port trunk permit vlan 1 20

port link-aggregation group 2

interface Twenty-FiveGigE1/0/4

port link-type trunk

port trunk permit vlan 1 20

port link-aggregation group 2

· Device D:

sysname DeviceD

ospf 1

router-id 4.4.4.4

area 0.0.0.0

vlan 10

vlan 40

vlan 30

interface Vlan-interface10

ospf 1 area 0.0.0.0

pim sm

ip address 100.0.0.2 255.255.255.0

interface Vlan-interface40

ospf 1 area 0.0.0.0

ip address 200.0.0.2 255.255.255.0

igmp enable

igmp version 2

interface Vlan-interface30

ospf 1 area 0.0.0.0

pim sm

ip address 300.0.0.2 255.255.255.0

interface Twenty-FiveGigE1/0/3

port access vlan 40

interface Twenty-FiveGigE1/0/1

port access vlan 10

interface Twenty-FiveGigE1/0/2

port access vlan 30

multicast routing

Example: Configuring Layer 3 IPv6 multicast on an M-LAG system attached to multicast sources

Network configuration

As shown in Figure 2:

· OSPFv3 runs on the network.

· VOD streams are sent to receiver hosts in multicast. The receivers of different subnets form stub networks, and a minimum of one receiver host exist on each stub network.

· The entire IPv6 PIM-SM domain contains only one BSR.

· Host A is a multicast data receiver attached to Device D.

· The Twenty-FiveGigE 1/0/3 interfaces on Device A and Device B are excluded from the shutdown action by M-LAG MAD to set up the keepalive link.

· A VRRP group is configured on VLAN-interface 20 interfaces. In the VRRP group, Device A is the master.

· M-LAG interfaces on Device A and Device B permit packets from VLAN 20 to pass through. PIM is enabled on VLAN-interface 20 of Device A and Device B.

· IPv6 multicast routing is enabled on Device A and Device B.

Figure 2 Network diagram

Device	Interface	IP address	Device	Interface	IP address
Device A	Vlan-int20	2000::1/80	Device D	Vlan-int10	2003::2/80
	WGE1/0/3	2002::1/80		Vlan-int30	2004::2/80
	Vlan-int10	2003::1/80		Vlan-int40	20::1/80
	Loop0	1111::1111/128
Device B	Vlan-int20	2000::2/80
	WGE1/0/3	2002::2/80
	Vlan-int30	2004::1/80
	Loop0	2222::2222/128

Applicable hardware and software versions

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

Hardware	Software version
S6550X-HI switch series	Release 1213P51 and later
S6880 switch series	Release 1213P51 and later
S9820-8M switch	Release 1213P51 and later
S5580X-HI switch series	Release 1213P50 and later
S5580X-EI switch series	Release 1213P50 and later
S5580S-EI switch series	Release 1213P50 and later

Procedures

Assigning IPv6 addresses and configuring unicast routing

Assign an IPv6 address and prefix to each interface as shown in Figure 2, and configure OSPFv3 on the devices in the IPv6 PIM-SM domain. (Details not shown.)

Configuring Device A

# Configure the M-LAG system settings.

<DeviceA> system-view

[DeviceA] m-lag system-mac 1-1-1

[DeviceA] m-lag system-number 1

[DeviceA] m-lag system-priority 123

# Configure M-LAG keepalive packet parameters.

[DeviceA] m-lag keepalive ipv6 destination 2002::2 source 2002::1

# Exclude the interface used for M-LAG keepalive detection (Twenty-FiveGigE 1/0/3) from the shutdown action by M-LAG MAD.

[DeviceA] m-lag mad exclude interface twenty-fivegige 1/0/3

# Create Layer 2 dynamic aggregate interface Bridge-Aggregation 1.

[DeviceA] interface bridge-aggregation 1

[DeviceA-Bridge-Aggregation1] link-aggregation mode dynamic

[DeviceA-Bridge-Aggregation1] quit

# Assign Twenty-FiveGigE 1/0/1 and Twenty-FiveGigE 1/0/2 to aggregation group 1.

[DeviceA] interface twenty-fivegige 1/0/1

[DeviceA-Twenty-FiveGigE1/0/1] port link-aggregation group 1

[DeviceA-Twenty-FiveGigE1/0/1] quit

[DeviceA] interface twenty-fivegige 1/0/2

[DeviceA-Twenty-FiveGigE1/0/2] port link-aggregation group 1

[DeviceA-Twenty-FiveGigE1/0/2] quit

# Create Layer 2 dynamic aggregate interface Bridge-Aggregation 2.

[DeviceA] interface bridge-aggregation 2

[DeviceA-Bridge-Aggregation2] link-aggregation mode dynamic

[DeviceA-Bridge-Aggregation2] quit

# Assign Twenty-FiveGigE 1/0/5 and Twenty-FiveGigE 1/0/6 to aggregation group 1.

[DeviceA] interface twenty-fivegige 1/0/5

[DeviceA-Twenty-FiveGigE1/0/5] port link-aggregation group 2

[DeviceA-Twenty-FiveGigE1/0/5] quit

[DeviceA] interface twenty-fivegige 1/0/6

[DeviceA-Twenty-FiveGigE1/0/6] port link-aggregation group 2

[DeviceA-Twenty-FiveGigE1/0/6] quit

# Configure Bridge-Aggregation 1 as a trunk port, assign it to all VLANs, and specify it as the IPP.

[DeviceA] interface bridge-aggregation 1

[DeviceA-Bridge-Aggregation1] port link-type trunk

[DeviceA-Bridge-Aggregation1] port trunk permit vlan all

[DeviceA-Bridge-Aggregation1] port m-lag peer-link 1

[DeviceA-Bridge-Aggregation1] quit

# Configure Bridge-Aggregation 2 as a trunk port, assign it to VLAN 20, and assign it to an M-LAG group.

[DeviceA] interface bridge-aggregation 2

[DeviceA-Bridge-Aggregation2] port link-type trunk

[DeviceA-Bridge-Aggregation2] port trunk permit vlan 20

[DeviceA-Bridge-Aggregation2] port m-lag group 1

[DeviceA-Bridge-Aggregation2] quit

# Configure VRRP group 1 on VLAN-interface 20, and set the priority of Device A to 200 for it to become the master in the VRRP group.

[DeviceA] interface vlan-interface 20

[DeviceA-Vlan-interface20] vrrp ipv6 vrid 1 virtual-ip FE80::10 link-local

[DeviceA-Vlan-interface20] vrrp ipv6 vrid 1 virtual-ip 2000::10

[DeviceA-Vlan-interface20] vrrp ipv6 vrid 1 priority 200

[DeviceA-Vlan-interface20] quit

# Enable IPv6 multicast routing, enable IPv6 PIM on VLAN-interface 10, and enable IPv6 PIM-SM on other interfaces as required.

[DeviceA] ipv6 multicast routing

[DeviceA-mrib6] quit

[DeviceA] interface vlan-interface 10

[DeviceA-Vlan-interface10] ipv6 pim sm

[DeviceA-Vlan-interface10] quit

[DeviceA] interface vlan-interface 20

[DeviceA-Vlan-interface20] ipv6 pim sm

[DeviceA-Vlan-interface20] quit

[DeviceA] interface loopback 0

[DeviceA-LoopBack0] ipv6 pim sm

[DeviceA-LoopBack0] quit

# Specify the IPv6 address of Loopback 0 as a C-RP and a C-BSR.

[DeviceA] ipv6 pim

[DeviceA-pim6] c-rp 1111::1111

[DeviceA-pim6] c-bsr 1111::1111

[DeviceA-pim6] quit

Configuring Device B

Configure Device B in the same way you configure Device A. (Details not shown.)

Configuring Device C

# Create Layer 2 dynamic aggregate interface Bridge-Aggregation 2.

<DeviceC> system-view

[DeviceC] interface bridge-aggregation 2

[DeviceC-Bridge-Aggregation2] link-aggregation mode dynamic

[DeviceC-Bridge-Aggregation2] quit

# Assign Twenty-FiveGigE 1/0/1 through Twenty-FiveGigE 1/0/4 to aggregation group 2.

[DeviceC] interface range twenty-fivegige 1/0/1 to twenty-fivegige 1/0/4

[DeviceC-if-range] port link-aggregation group 2

[DeviceC-if-range] quit

# Configure Bridge-Aggregation 2 as a trunk port, and assign it to VLAN 20.

[DeviceC] interface bridge-aggregation 2

[DeviceC-Bridge-Aggregation1] port link-type trunk

[DeviceC-Bridge-Aggregation1] port trunk permit vlan 20

[DeviceC-Bridge-Aggregation1] quit

# Assign Twenty-FiveGigE 1/0/5 to VLAN 20.

[DeviceC] interface twenty-fivegige 1/0/5

[DeviceC-Twenty-FiveGigE1/0/5] port access vlan 20

[DeviceC-Twenty-FiveGigE1/0/5] quit

Configuring Device D

# Assign Twenty-FiveGigE 1/0/1, Twenty-FiveGigE 1/0/2, and Twenty-FiveGigE 1/0/3 to VLAN 10, VLAN 30, and VLAN 40, respectively.

<DeviceD> system-view

[DeviceD] vlan 10

[DeviceD-vlan10] quit

[DeviceD] interface twenty-fivegige1/0/1

[DeviceD-Twenty-FiveGigE1/0/1] port access vlan 10

[DeviceD-Twenty-FiveGigE1/0/1] quit

[DeviceD] vlan 40

[DeviceD-vlan40] quit

[DeviceD] interface twenty-fivegige1/0/3

[DeviceD-Twenty-FiveGigE1/0/3] port access vlan 40

[DeviceD] vlan 30

[DeviceD-vlan30] quit

[DeviceD] interface twenty-fivegige1/0/2

[DeviceD-Twenty-FiveGigE1/0/2] port access vlan 30

# Enable IPv6 multicast routing, and enable IPv6 PIM-SM on VLAN-interface 10 and VLAN-interface 30.

[DeviceD] ipv6 multicast routing

[DeviceD-mrib6] quit

[DeviceD] interface vlan-interface 10

[DeviceD-Vlan-interface10] ipv6 pim sm

[DeviceD-Vlan-interface10] quit

[DeviceD] vlan 30

[DeviceD-vlan30] quit

[DeviceD] interface vlan-interface 30

[DeviceD-Vlan-interface30] ipv6 pim sm

[DeviceD-Vlan-interface30] quit

# Enable MLDv2 on VLAN-interface 40.

[DeviceD] interface vlan-interface 40

[DeviceD-Vlan-interface40] mld enable

[DeviceD-Vlan-interface40] mld version 2

[DeviceD-Vlan-interface40] quit

Verifying the configuration

# Verify that Device B sends and receives keepalive packets correctly.

<DeviceB> display m-lag keepalive

Neighbor keepalive link status (cause): Up

Neighbor is alive for: 2128 s 421 ms

Keepalive packet transmission status:

Sent: Successful

Received: Successful

Last received keepalive packet information:

Source IP address: 2002::1

Time: 2021/12/21 15:45:15

Action: Accept

Distributed relay keepalive parameters:

Destination IP address: 2002::1

Source IP address: 2002::2

Keepalive UDP port : 6400

Keepalive VPN name : N/A

Keepalive interval : 1000 ms

Keepalive timeout : 5 sec

Keepalive hold time: 3 sec

# Verify that interfaces used by M-LAG operate correctly on Device B.

<DeviceB> display m-lag summary

Flags: A -- Aggregate interface down, B -- No peer DR interface configured

C -- Configuration consistency check failed

IPP: BAGG1

IPP state (cause): UP

Keepalive link state (cause): UP

DR interface information

DR interface DR group Local state (cause) Peer state Remaining down time(s)

BAGG2 1 UP UP -

# Verify that the M-LAG interface on Device B operates correctly.

<DeviceB> display link-aggregation verbose bridge-aggregation 2

Loadsharing Type: Shar -- Loadsharing, NonS -- Non-Loadsharing

Port Status: S -- Selected, U -- Unselected, I -- Individual

Port: A -- Auto port, M -- Management port, R -- Reference port

Flags: A -- LACP_Activity, B -- LACP_Timeout, C -- Aggregation,

D -- Synchronization, E -- Collecting, F -- Distributing,

G -- Defaulted, H -- Expired

Aggregate Interface: Bridge-Aggregation2

Creation Mode: Manual

Aggregation Mode: Dynamic

Loadsharing Type: Shar

Management VLANs: None

System ID: 0x7b, 0001-0001-0001

Local:

Port Status Priority Index Oper-Key Flag

WGE1/0/5(R) S 32768 32770 40001 {ACDEF}

WGE1/0/6 S 32768 32770 40001 {ACDEF}

Remote:

Actor Priority Index Oper-Key SystemID Flag

WGE1/0/5 32768 2 1 0x8000, 84c4-42e5-0300 {ACDEF}

WGE1/0/6 32768 2 1 0x8000, 84c4-42e5-0300 {ACDEF}

# Verify that the MLD group information on Device D is correct.

<DeviceD> display mld group

MLD groups in total: 1

Vlan-interface40(20::1):

MLD groups reported in total: 1

Group address: FF08::2

Last reporter: 20::2

Uptime: 01:56:46

Expires: 00:02:43

# Verify that IPv6 PIM routing entries have been created on Device B.

<DeviceB> display ipv6 pim routing-table

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

(*, FF08::2)

RP: 2222::2222(local)

Protocol: pim-sm, Flag: WC

UpTime: 00:17:51

Upstream interface: Register-Tunnel0

Upstream neighbor: NULL

RPF prime neighbor: NULL

Downstream interface information:

Total number of downstream interfaces: 1

1: Vlan-interface30

Protocol: pim-sm, UpTime: 00:17:51, Expires: 00:02:39

(2000::111, FF3E::1)

RP: 2222::2222(local)

Protocol: pim-sm, Flag: LOC

UpTime: 00:17:54

Upstream interface: Vlan-interface20

Upstream neighbor: NULL

RPF prime neighbor: NULL

Downstream interface information:

Total number of downstream interfaces: 1

1: Vlan-interface30

Protocol: pim-sm, UpTime: 00:17:54, Expires: 00:02:36

# Verify that IPv6 multicast forwarding entries have been created on Device B.

<DeviceB> display ipv6 multicast forwarding-table

Total 1 entries, 1 matched

00001. (2000::111, FF3E::1)

Flags: 0x0

Uptime: 00:08:27, Timeout in: 00:03:27

Incoming interface: Vlan-interface20

List of 1 outgoing interfaces:

1: Vlan-interface30

Matched 23531 packets(194368 bytes), Wrong If 0 packets

Forwarded 21194 packets(171592 bytes)

# Verify that Device A does not create IPv6 PIM routing entries or multicast forwarding entries, which indicates that Device B forwards all multicast traffic to the receiver. (Details not shown.)

Configuration files

· Device A:

sysname DeviceA

ospfv3 1

router-id 2.2.2.2

area 0.0.0.0

vlan 10

vlan 20

interface Bridge-Aggregation1

port link-type trunk

port trunk permit vlan all

link-aggregation mode dynamic

port m-lag peer-link 1

interface Bridge-Aggregation2

port link-type trunk

port trunk permit vlan 1 20

link-aggregation mode dynamic

port m-lag group 1

interface LoopBack0

ospfv3 1 area 0.0.0.0

ipv6 pim sm

ipv6 address 1111::1111/128

interface Vlan-interface10

ospfv3 1 area 0.0.0.0

ipv6 pim sm

ipv6 address 2003::1/80

interface Vlan-interface20

ospfv3 1 area 0.0.0.0

ipv6 pim sm

ipv6 address 2000::1/80

vrrp ipv6 vrid 1 virtual-ip FE80::10 link-local

vrrp ipv6 vrid 1 virtual-ip 2000::10

vrrp ipv6 vrid 1 priority 200

interface Twenty-FiveGigE1/0/3

ipv6 address 2002::1/80

interface Twenty-FiveGigE1/0/5

port link-type trunk

port trunk permit vlan 1 20

port link-aggregation group 2

interface Twenty-FiveGigE1/0/6

port link-type trunk

port trunk permit vlan 1 20

port link-aggregation group 2

interface Twenty-FiveGigE1/0/4

port access vlan 10

interface Twenty-FiveGigE1/0/1

port link-type trunk

port trunk permit vlan all

port link-aggregation group 1

interface Twenty-FiveGigE1/0/2

port link-type trunk

port trunk permit vlan all

port link-aggregation group 1

ipv6 multicast routing

ipv6 pim

c-bsr 1111::1111

c-rp 1111::1111

m-lag system-mac 0001-0001-0001

m-lag system-number 1

m-lag system-priority 123

m-lag keepalive ipv6 destination 2002::2 source 2002::1

m-lag mad exclude interface Twenty-FiveGigE1/0/3

· Device B:

sysname DeviceB

ospfv3 1

router-id 3.3.3.3

area 0.0.0.0

vlan 20

vlan 30

interface Bridge-Aggregation1

port link-type trunk

port trunk permit vlan all

link-aggregation mode dynamic

port m-lag peer-link 1

interface Bridge-Aggregation2

port link-type trunk

port trunk permit vlan 1 20

link-aggregation mode dynamic

port m-lag group 1

interface LoopBack0

ospfv3 1 area 0.0.0.0

ipv6 pim sm

ipv6 address 2222::2222/128

interface Vlan-interface20

ospfv3 1 area 0.0.0.0

ipv6 pim sm

ipv6 address 2000::2/80

vrrp ipv6 vrid 1 virtual-ip FE80::10 link-local

vrrp ipv6 vrid 1 virtual-ip 2000::10

vrrp ipv6 vrid 1 priority 100

interface Vlan-interface30

ospfv3 1 area 0.0.0.0

ipv6 pim sm

ipv6 address 2004::1/80

interface Twenty-FiveGigE1/0/3

ospfv3 1 area 0.0.0.0

ipv6 address 2002::2/80

interface Twenty-FiveGigE1/0/5

port link-type trunk

port trunk permit vlan 1 20

port link-aggregation group 2

interface Twenty-FiveGigE1/0/6

port link-type trunk

port trunk permit vlan 1 20

port link-aggregation group 2

interface Twenty-FiveGigE1/0/4

port access vlan 30

interface Twenty-FiveGigE1/0/1

port link-type trunk

port trunk permit vlan all

port link-aggregation group 1

interface Twenty-FiveGigE1/0/2

port link-type trunk

port trunk permit vlan all

port link-aggregation group 1

ipv6 multicast routing

ipv6 pim

c-bsr 2222::2222

c-rp 2222::2222

m-lag system-mac 0001-0001-0001

m-lag system-number 2

m-lag system-priority 123

m-lag keepalive ipv6 destination 2002::1 source 2002::2

m-lag mad exclude interface Twenty-FiveGigE1/0/3

· Device C:

sysname DeviceC

vlan 20

interface Bridge-Aggregation2

port link-type trunk

port trunk permit vlan 1 20

link-aggregation mode dynamic

interface LoopBack1

ipv6 address FE80::2 link-local

interface Twenty-FiveGigE1/0/5

port access vlan 20

interface Twenty-FiveGigE1/0/1

port link-type trunk

port trunk permit vlan 1 20

port link-aggregation group 2

interface Twenty-FiveGigE1/0/2

port link-type trunk

port trunk permit vlan 1 20

port link-aggregation group 2

interface Twenty-FiveGigE1/0/3

port link-type trunk

port trunk permit vlan 1 20

port link-aggregation group 2

interface Twenty-FiveGigE1/0/4

port link-type trunk

port trunk permit vlan 1 20

port link-aggregation group 2

· Device D:

sysname DeviceD

ospfv3 1

router-id 4.4.4.4

area 0.0.0.0

vlan 10

vlan 40

vlan 30

interface Vlan-interface10

ospfv3 1 area 0.0.0.0

ipv6 pim sm

ipv6 address 2003::2/80

interface Vlan-interface40

ospfv3 1 area 0.0.0.0

ipv6 address 20::1/80

mld enable

mld version 2

interface Vlan-interface30

ospfv3 1 area 0.0.0.0

ipv6 pim sm

ipv6 address 2004::2/80

interface Twenty-FiveGigE1/0/3

port access vlan 40

interface Twenty-FiveGigE1/0/1

port access vlan 10

interface Twenty-FiveGigE1/0/2

port access vlan 30

ipv6 multicast routing

pim

07-IP Multicast Configuration Examples

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