H3C Technologies H3C S7500E Series Switches - Manual (Page 267)

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To do… Use the command… Remarks
Configure the device to assign
labels to IPv4 routes
apply mpls-label
Required
By default, an IPv4 route does not
carry any label.
For information about routing policy configuration, see Routing Policy Configuration in the Layer 3 - IP
Routing Configuration Guide .
Configuring Nested VPN
For a network with many VPNs, if you want to implement layered management of VPNs and to
conceal the deployment of internal VPNs, nested VPN is a good solution. By using nested VPN, you
can implement layered management of internal VPNs easily with a low cost and simple management
operation.
Configuration Prerequisites
Before configuring nested VPN, configure the basic MPLS L3VPN capability. See Configuring Basic
MPLS L3VPN .
Configuring Nested VPN
Follow these steps to configure nested VPN:
To do… Use the command… Remarks
Enter system view system-view —
Enter BGP view bgp as-number —
Enter BGP VPN instance view
ipv4-family vpn-instance
vpn-instance-name
—
Configure a CE peer or peer group
peer { group-name |
peer-address } as-number
number
Required
Return to BGP view quit —
Enter BGP-VPNv4 subaddress
family view
ipv4-family vpnv4 —
Enable nested VPN nesting-vpn
Required
Disabled by default.