H3C MSR 20-20 Command Reference Manual page 1512

1512 C 94: M
HAPTER ULTICAST
Examples
VPN C C
ONFIGURATION OMMANDS
By default, no switch-group-pool is configured and multicast traffic is never
switched to a switch-MDT.
Note that:
This command cannot be configured without the previous share-MDT
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configuration in the VPN instance.
On a given PE device, the switch-group address range for a VPN must not
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contain the share-group of any VPN.
On a given PE device, the switch-group address range for a VPN instance must
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not overlap with that for any other VPN instance. A new configuration with
this command in the same VPN instance supersedes the existing configuration.
The threshold threshold-value command option is not supported on a switch.
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If you use the multicast-domain switch-group-pool command on a switch,
share-MDT to switch-MDT switching will take place immediately after the
switch receives multicast traffic for this VPN instance.
# Configure the address range of the switch-group-pool in VPN instance mvpn as
225.2.2.0 to 225.2.2.15.
<Sysname> system-view
[Sysname] ip vpn-instance mvpn
[Sysname-vpn-instance-mvpn] multicast-domain switch-group-pool 225.2.2.0 28