R2511-HP MSR Router Series MPLS Configuration Guide(V5)
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NOTE:
The ip binding vpn-instance command deletes the IP address of the current interface. You must
re-configure an IP address for the interface after configuring the command.
Configuring route related attributes for a VPN instance
The device processes 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 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 targets attributes for routes to be advertised
according to the export-extcommunity in the route target.
To configure route related attributes for a VPN instance:
Ste
p
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 route targets.
vpn-target vpn-target&<1-8>
[ both | export-extcommunity |
import-extcommunity ]
A single vpn-target command can
configure up to eight route targets.
You can configure up to 64 route
targets for a VPN instance.
5. Set the maximum number of
routes allowed.
routing-table limit number
{ warn-threshold | simply-alert }
Optional.
Setting the maximum number of
routes for a VPN instance is for
preventing too many routes from
being redistributed into the PE.
6. Apply an import routing
policy.
import route-policy route-policy
Optional.
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.
7. Apply an export routing
policy.
export route-policy route-policy
Optional.
By default, routes to be advertised
are not filtered.
Make sure the routing policy
already exists. Otherwise, the
device does not filter routes to be
advertised.