200
Tasks at a glance
(Optional.)
794H
Enabling logging for BGP route flapping
91B
Configuring basic MPLS L3VPN
Tasks at a glance
795H
Configuring VPN instances
:
(Required.)
796H
Creating a VPN instance
(Required.)
797H
Associating a VPN instance with an interface
(Optional.)
798H
Configuring route related attributes for a VPN instance
(Required.)
799H
Configuring routing between a PE and a CE
(Required.)
800H
Configuring routing between PEs
(Optional.)
801H
Configuring BGP VPNv4 route control
234B
Configuration prerequisites
Before you configure basic MPLS L3VPN, perform the following tasks:
1.
Configure an IGP on the PEs and P devices to ensure IP connectivity within the MPLS
backbone.
2.
Configure basic MPLS for the MPLS backbone.
3.
Configure MPLS LDP on the PEs and P devices to establish LDP LSPs.
235B
Configuring VPN instances
VPN instances isolate VPN routes from public network routes and routes among VPNs. This feature
allows VPN instances to be used in network scenarios in addition to MPLS L3VPNs.
All VPN instance configurations are performed on PEs or MCEs.
463B
Creating a VPN instance
A VPN instance 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 instances
exist.
3.
Configure an RD for the VPN
instance.
route-distinguisher
route-distinguisher
By default, no RD is configured for
a VPN instance.
4.
(Optional.) Configure a
description for the VPN
instance.
description text
By default, no description is
configured for a VPN instance.
5.
(Optional.) Configure a VPN
ID for the VPN instance.
vpn-id vpn-id
By default, no VPN ID is
configured for a VPN instance.
6.
(Optional.) Configure an
snmp context-name
By default, no SNMP context is