Associating a vpn instance with an interface – H3C Technologies H3C SR8800 User Manual
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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
N/A
3.
Configure an RD for the VPN
instance.
route-distinguisher
route-distinguisher
N/A
4.
Configure a description for
the VPN instance.
description text
Optional
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 “Configuring basic MPLS.”
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
3.
Associate a VPN instance
with the interface.
ip binding vpn-instance
vpn-instance-name
No VPN instance is associated
with an interface by default.
NOTE:
The ip binding vpn-instance command clears the IP address of the interface on which it is configured. Be
sure to re-configure an IP address for the interface after configuring the command.
Configuring route related attributes for a VPN instance
The control process of VPN route advertisement is as follows:
•
When a VPN route learned from a CE gets redistributed into BGP, BGP associates it with a VPN
target extended community attribute list, which is usually the export target attribute of the VPN
instance associated with the CE.
•
The VPN instance determines which routes it can accept and redistribute according to the
import-extcommunity in the VPN target.
•
The VPN instance determines how to change the VPN targets attributes for routes to be advertised
according to the export-extcommunity in the VPN target.
To configure route related attributes for a VPN instance:
Step Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Enter VPN instance view.
ip vpn-instance vpn-instance-name
N/A
3.
Enter IPv4 VPN view.
ipv4-family
Optional.
4.
Configure VPN targets.
vpn-target vpn-target&<1-8>
[ both | export-extcommunity |
import-extcommunity ]
N/A