beautypg.com

Configuration prerequisites, Configuring vpn instances, Creating a vpn instance – H3C Technologies H3C S10500 Series Switches User Manual

Page 354: Associating a vpn instance with an interface

background image

343

Task

Remarks

Configuring a tunneling policy for a VPN instance

Optional

Configuring an LDP instance

Optional

Configuring routing between PE and CE

Required

Configuring routing between PEs

Required

Configuring routing features for the BGP-VPNv6 subaddress family

Optional

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.
Follow these steps to create and configure a VPN instance:

To do…

Use the command…

Remarks

Enter system view

system-view

Create a VPN instance and enter
VPN instance view

ip vpn-instance vpn-instance-name Required

Configure an RD for the VPN
instance

route-distinguisher
route-distinguisher

Required
A VPN instance takes effect only

after you configure an RD for it.

Configure a description for the
VPN instance

description text

Optional
The description should contain the

VPN instance’s related

information, such as its relationship
with a certain VPN.

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 the chapter “MPLS basics configuration.”
Follow these steps to associate a VPN instance with an interface: