Configuration Prerequisites; Configuring Vpn Instances - H3C S5500-HI Series Mpls Configuration Manual

Task
Configuring routing between PE and CE
Configuring routing between PEs
Configuring routing features for the BGP-VPNv6 subaddress family

Configuration prerequisites

Before configuring basic IPv6 MPLS L3VPN, complete the following tasks:
Configure an IGP on the PEs and Ps to ensure IP connectivity within the MPLS backbone.
•
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 of a VPN from those of another VPN. This feature allows VPN instances to be used in network
scenarios besides MPLS L3VPNs.
All VPN instance configurations are performed on PEs or MCEs.
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 does not necessarily correspond to one VPN.
To create and configure a VPN instance:
Step
1. Enter system view.
2. Create a VPN instance and
enter VPN instance view.
3. Configure an RD for the VPN
instance.
4. Configure a description for
the VPN instance.
Associating a VPN instance with an interface
After creating and configuring a VPN instance, you need to associate the VPN instance with the interface
for connecting the CE. Any LDP-capable interface can be associated with a VPN instance. For
information about LDP-capable interfaces, see "Configuring basic MPLS."
Configuring route related attributes for a VPN
instance
Configuring a tunneling policy for a VPN instance
Configuring an LDP instance
Command
system-view
ip vpn-instance vpn-instance-name
route-distinguisher
route-distinguisher
description text
348
Remarks
Optional
Optional
Optional
Required
Required
Optional
Remarks
N/A
N/A
A VPN instance takes effect only
after you configure an RD for it.
Optional.
The description should contain the
VPN instance's related
information, such as its relationship
with a certain VPN.