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Example: Configuring Policy-Based Export for a Nonforwarding Instance

This example shows how to use the instance-import and instance-export statements to control route export between multiple instances. This is equivalent to using the vrf-import and vrf-export statements for VPNs, except these are with nonforwarding instances, not VRF instances.

There are two nonforwarding instances: data and voice. The following is the configuration for a PE router.

Configure the routing instances for data and voice:



[edit]
routing-instances {


data {
instance-type no-forwarding;
interface t3-0/1/3.0;


routing-options {
instance-import data-import;
auto-export;


protocols {


ospf {
export accept;


area 0.0.0.0 {
interface all;
}


}


}


}




voice {
instance-type no-forwarding;
interface t3-0/1/0.0;


routing-options {
instance-import voice-import;
auto-export;
}




protocols {


ospf {
export accept;


area 0.0.0.0 {
interface all;
}


}


}


}


}


}

Configure a master policy:



[edit]
policy-options {


policy-statement {


master-import {


term a {
from instance master;


then {
tag 11;
accept;
}


}




term b {
from instance data;


then {
tag 10;
accept;
}


}


}


}


}

Configure policies for each instance:



[edit]
policy-options {


policy-statement {


data-import {


term a {


from {
instance master;
tag 10;
then accept;
}


}




term b {
then reject;
}


}




voice-import {


term a {


from {
instance master;
protocol ospf;
tag 11;
}


}




term b {
then reject;
}


}


}


}

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