27
Step Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Enter interface view.
interface
interface-type
interface-number
N/A
3.
Associate the current interface
with a VPN instance.
ip binding vpn-instance
vpn-instance-name
By default, no VPN instance is
associated with an interface.
NOTE:
The
ip binding vpn-instance
command deletes the IPv6 address of the current interface. You must
reconfigure an IPv6 address for the interface after configuring the command.
Configuring route attributes for a VPN instance
The MCE controls VPN route advertisement as follows:
•
When a VPN route learned from a site gets redistributed into BGP, BGP associates it with a route
target extended community attribute list, which is usually the export target attribute list of the VPN
instance associated with the site.
•
The VPN instance determines which routes it can accept and redistribute according to the
import-extcommunity
in the route target.
•
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 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.
(Optional.) Enter IPv6 VPN
view.
ipv6-family
N/A
4.
Configure route targets for the
VPN instance.
vpn-target
vpn-target
&<1-8>
[
both
|
export-extcommunity
|
import-extcommunity
]
By default, no route target is
configured for the VPN instance.
5.
(Optional.) Configure the
maximum number of routes for
the VPN instance.
routing-table
limit
number
{
warn-threshold
|
simply-alert
}
By default, the maximum route
number is not configured.
Setting the maximum number of
routes for a VPN instance is for
preventing too many routes from
being redistributed into the PE.
6.
(Optional.) Apply an import
routing policy.
import route-policy
route-policy
By default, all routes matching the
import target attribute are
accepted.
Make sure the routing policy
already exists. Otherwise, the
device does not filter received
routes.