278
•
Configure basic MPLS for the MPLS backbone.
•
Configure MPLS LDP on PEs and Ps to establish LDP LSPs.
Configuring VPN instances
By configuring VPN instances on a PE, you isolate not only VPN routes from public network routes, but
also routes between VPNs. This feature allows VPN instances to be used in network scenarios besides
MPLS L3VPNs.
All VPN instance configurations are performed on PEs.
Creating a VPN instance
A VPN instance is associated with a site. It is a collection of the VPN membership and routing rules of its
associated site. A VPN instance might correspond to more than one VPN.
To create and configure a VPN instance:
Step Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Create a VPN instance and
enter VPN instance view.
ip vpn-instance
vpn-instance-name
By default, no VPN instance is
created.
3.
Configure an RD for the VPN
instance.
route-distinguisher
route-distinguisher
By default, no RD is specified.
4.
(Optional.) Configure a
description for the VPN
instance.
description
text
By default, no description is
configured for a VPN instance.
The description should contain the
VPN instance's related
information, such as its relationship
with a certain VPN.
5.
(Optional.) Configure an ID
for the VPN instance.
vpn-id
vpn-id
By default, no ID is configured for a
VPN instance.
Associating a VPN instance with an interface
After creating and configuring a VPN instance, associate the VPN instance with the interface connected
to the CE.
To associate a VPN instance with an interface:
Step Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Enter interface view.
interface
interface-type
interface-number
N/A