Export Maps

You can use an export map to change the attributes of a route when it is exported from a VRF to the global BGP VPN RIB local to the VR. This RIB is often referred to as the core VPN RIB. Export maps can optionally filter routes.

When the VRF route matches the export map, the route is exported and the attributes are changed as specified in the export map.

When the VRF route does not match the export map, the filter keyword determines what happens. If the filter keyword has been issued, then the route is not exported. If the filter keyword has not been issued, then the route is exported but the attributes of the route are not modified (because the export map was not matched).

If you do not configure an export map, then all routes are exported from the VRF to the global BGP VPN RIB. However, routes that are imported into the VRF cannot be exported again.

export map

• Use to apply a route map to a VRF to modify or filter routes exported from the VRF to the global BGP VPN RIB in the parent VR.
• You can specify that only IPv4 or only IPv6 routes are exported. By default, both types of routes are exported.
• Example

  host1:boston(config-vrf)#export map routemap5 filter

• Use the no version to remove the route map from the VRF.
• See export map.

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