Configuring Route Related Attributes For A Vpn Instance - HP 10500 SERIES Configuration Manual

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 route
•
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 route target.
• The VPN instance determines how to change the route targets attributes for routes to be advertised
according to the export-extcommunity in the route target.
IMPORTANT:
Create a routing policy before associating it with a VPN instance. Otherwise, the device cannot filter the
routes to be received and advertised.
To configure route related attributes for a VPN instance:
Step
1. Enter system view.
2. Enter VPN instance view.
3. Enter IPv6 VPN view.
4. Configure route targets.
5. Set the maximum number of
routes supported.
6. Apply an import routing
policy.
7. Apply an export routing
policy.
NOTE:
Route related attributes configured in VPN instance view are applicable to both IPv4 VPNs and IPv6
•
VPNs.
You can configure route related attributes for IPv6 VPNs in both VPN instance view and IPv6 VPN view.
•
Those configured in IPv6 VPN view take precedence.
Command
system-view
ip vpn-instance vpn-instance-name
ipv6-family
vpn-target vpn-target&<1-8>
[ both | export-extcommunity |
import-extcommunity ]
routing-table limit number
{ warn-threshold | simply-alert }
import route-policy route-policy
export route-policy route-policy
350
Remarks
N/A
N/A
Optional.
A single vpn-target command can
configure up to eight route targets.
You can configure up to 64 route
targets for a VPN instance.
Optional.
Setting the maximum number of
routes for a VPN instance to
support is for preventing too many
routes from being redistributed into
the PE.
Optional.
By default, all routes matching the
import target attribute are
accepted.
Optional.
By default, routes to be advertised
are not filtered.