26
Step Command
Remarks
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 MCE's interface
connected to the site and the interface connected to the PE.
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
By default, an interface is not
associated with a VPN instance.
The
ip binding vpn-instance
command clears the IP address of
the interface. Therefore,
re-configure an IP address for the
interface after configuring this
command.
Configuring route related attributes for a VPN instance
VPN routes are controlled and advertised on a PE by using the following process:
1.
When a VPN route learned from a CE gets redistributed into BGP, BGP associates it with a
route target extended community attribute list, which is usually the export target attribute of the
VPN instance associated with the CE.
2.
The VPN instance determines which routes it can accept and redistribute according to the
import-extcommunity
in the route target.
3.
The VPN instance determines how to change the route target attributes for routes to be
advertised according to the
export-extcommunity
in the route 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 or
IPv6 VPN view.
•
Enter VPN instance view:
ip vpn-instance
vpn-instance-name
•
Enter IPv6 VPN view:
a. ip vpn-instance
vpn-instance-name
b. address-family ipv6
Configurations made in VPN
instance view apply to both IPv4
VPN and IPv6 VPN.
IPv6 VPN prefers the
configurations in IPv6 VPN view
over the configurations in VPN
instance view.
3.
Configure route targets.
vpn-target vpn-target
&<1-8>
[
both
|
export-extcommunity
|
import-extcommunity
]
By default, no route targets are
configured.
