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Configuration procedure
1. Configure PE 1:
# Configure a global router ID, and enable IP multicast routing on the public network.
<PE1> system-view
[PE1] router id 1.1.1.1
[PE1] multicast routing
[PE1-mrib] quit
# Configure an MPLS LSR ID, and enable LDP.
[PE1] mpls lsr-id 1.1.1.1
[PE1] mpls ldp
[PE1-ldp] quit
# Create VPN instance a and configure an RD and route target attributes for it.
[PE1] ip vpn-instance a
[PE1-vpn-instance-a] route-distinguisher 100:1
[PE1-vpn-instance-a] vpn-target 100:1 export-extcommunity
[PE1-vpn-instance-a] vpn-target 100:1 import-extcommunity
[PE1-vpn-instance-a] quit
# Create service loopback group 1, and specify its type as multicast tunnel.
[PE1] service-loopback group 1 type multicast-tunnel
# Select an unused interface, and assign the interface to service loopback group 1.
[PE1] interface ten-gigabitethernet1/1/7
[PE1-Ten-GigabitEthernet1/1/7] port service-loopback group 1
[PE1-Ten-GigabitEthernet1/1/7] quit
# Enable IP multicast routing in VPN instance a.
[PE1] multicast routing vpn-instance a
[PE1-mrib-a] quit
# Create the MD for VPN instance a, and specify the default-group, MD source interface, and
data-group address range for it.
[PE1] multicast-domain vpn-instance a
[PE1-md-a] default-group 239.1.1.1
[PE1-md-a] source loopback 1
[PE1-md-a] data-group 225.1.1.0 28
[PE1-md-a] quit
# Create VPN instance b and configure an RD and route target attributes for it.
[PE1] ip vpn-instance b
[PE1-vpn-instance-b] route-distinguisher 200:1
[PE1-vpn-instance-b] vpn-target 200:1 export-extcommunity
[PE1-vpn-instance-b] vpn-target 200:1 import-extcommunity
[PE1-vpn-instance-b] quit
# Enable IP multicast routing in VPN instance b.
[PE1] multicast routing vpn-instance b
[PE1-mrib-b] quit
# Create the MD for VPN instance b, and specify the default-group, MD source interface, and
data-group address range for it.
[PE1] multicast-domain vpn-instance b
[PE1-md-b] default-group 239.4.4.4
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