3Com S7906E - Switch, Configuration Manual

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To do... Use the command... Remarks
Create a VPN instance and
enter VPN instance view
ip vpn-instance
vpn-instance-name
—
Configure an RD for the VPN
instance route-distinguisher
route-distinguisher
Required
No RD is configured for a VPN
instance by default.
Enable IP multicast routing multicast routing-enable
Required
Disabled by default
z
For details about the ip vpn-instance and route-distinguisher commands, refer to MPLS L3VPN
Commands in the MPLS Volume .
z
For details about the multicast routing-enable command, refer to Multicast Routing and
Forwarding Commands in the IP Multicast Volume.
Configuring a Share-Group and an MTI Binding
By running multiple instances on each PE device, you enable the PE device to work for multiple VPNs.
You need to configure the same share-group address for the same VPN instance on different PE
devices. With a share-group and an MTI number configured, the system automatically creates an MTI,
binds the share-group address to the MTI and binds the MTI to the current VPN instance.
Follow these steps to configure a share-group and an MTI binding:
To do... Use the command... Remarks
Enter system view system-view —
Enter VPN instance view
ip vpn-instance
vpn-instance-name
—
Configure a share-group
address and an MTI binding
multicast-domain
share-group group-address
binding mtunnel
mtunnel-number
Required
No share-group address or MTI
binding is configured.