Vrf Import Policy Enhancement; Flexible L3Vpn Label Allocation Mode; Match Aggregated Route - Cisco ASR 9000 Series Routing Configuration Manual

Implementing Routing Policy
!! IOS XR Configuration 0.0.0
!
ospf-area-set ospf_area_set_demo1
end-set
!
!
ospf-area-set ospf_area_set_demo2
end-set
!
route-policy use_ospf_area_set
end-policy
!
end
This completes the configuration of routing policy with wildcards for OSPF area sets.

VRF Import Policy Enhancement

The VRF RPL based import policy feature provides the ability to perform import operation based solely on
import route-policy, by matching on route-targets (RTs) and other criteria specified within the policy. No
need to explicitly configure import RTs under global VRF-address family configuration mode. If the import
RTs and import route-policy is already defined, then the routes will be imported from RTs configured under
import RT and then follows the route-policy attached at import route-policy.
Use the source rt import-policy command under VRF sub-mode of VPN address-family configuration mode
to enable this feature.

Flexible L3VPN Label Allocation Mode

The flexible L3VPN label allocation feature provides the ability to set label allocation mode using a route-policy,
where different allocation modes can be used for different sets of prefixes. Thus, label mode can be chosen
based on arbitrary match criteria such as prefix value and community.
Use the label mode command to set the MPLS/VPN label mode based on prefix value. The Label-Mode
attach point enables you to choose label mode based on any arbitrary criteria.

Match Aggregated Route

The Match Aggregated Route feature helps to match BGP aggregated route from the non-aggregated route.
BGP can aggregate a group of routes into a single prefix before sending updates to a neighbor. With Match
Aggregated Route feature, route policy separates this aggregated route from other routes.
10.0.0.1,
3553
20.0.0.2,
3673
if ospf-area in ospf-area-set* then
set ospf-metric 200
elseif ospf-area in (10.0.0.1, 10.0.0.2) then
set ospf-metric 300
endif
Cisco ASR 9000 Series Aggregation Services Router Routing Configuration Guide, Release 5.3.x
VRF Import Policy Enhancement
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