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Examples: Configuring an OSPF Domain ID

Configure a domain ID as a match condition for inbound Layer 3 VPN routes. Then configure an export policy to tag the extended community ID and the route distinguisher onto outgoing routes:



[edit]
routing-instances {


CE_A {
instance-type vrf;
interface ge-0/1/0.0;
route-distinguisher 1:100;
vrf-import vrf_import_routes;
vrf-export vrf_export_routes;


protocols {


ospf {
domain-id 1.1.1.1;  #match for inbound routes
route-type-community vendor;
export vrf_import_routes;


area 0.0.0.0 {
interface ge-0/1/0.0;
}


}


}


}


}
policy-options {


policy-statement vrf_export_routes {


term a {
from protocol ospf;


then {
community add export_target;
accept;
}


}




term b {
then reject;
}


}


community export_target members [ target:1:100 domain-id:1.1.1.1:0
];
}

Leak a noninstance route into the instance routing table:



[edit]
routing-options {


interface-routes {
rib-group inet inet_to_site_A;
}


}
[edit]
rib-groups {


inet_to_site_A {
import-rib [ inet.0 site_A.inet.0 ];
}


}
[edit]
protocols {


ospf {
rib-group inet_to_site_A;
}


}
[edit]
policy-options {


policy-statement announce_to_ce {


term a {


from {
protocol direct;
interface lo0.0;
}


then accept;
}


}


}
[edit]
routing-instances {


site_A {


protocols {


ospf {
export announce_to_ce;
}


}


}


}

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