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Hub-and-Spoke MVPN Configuration

In this example, which only configures VPN-A, PE-1 connects to VPN-A (spoke site) at site 1, PE-4 connects to VPN-A (hub site) at site 4, and PE-2 connects to VPN-A (spoke site) at site 3. Current support is limited to the case where there are two interfaces between the hub site CE and PE. To configure a hub-and-spoke MVPN for VPN-A, perform the following steps:

Configure PE-1 for VPN-A (spoke site):



[edit]
routing-instances {


VPN-A {
instance-type vrf;
interface so-6/0/0.0;
interface so-6/0/1.0;


provider-tunnel {


rsvp-te {


label-switched-path-template {
default-template;
}


}


}




protocols {


mvpn {


route-target {
export-target unicast;
import-target unicast target target:1:4;
}


}


}


route-distinguisher 65535:0;


vrf-target {
import target:1:1;
export target:1:3;
}




routing-options {
auto-export;
}


}

Configure PE-4 for VPN-A (hub site):



[edit]
routing-instances {


VPN-A-spoke-to-hub {
instance-type vrf;
interface so-1/0/0.0; #receives data and joins from the
CE


protocols {


mvpn {
receiver-site;


route-target {
export-target target target:1:4;
import-target unicast;
}


}




ospf {
export redistribute-vpn; #redistribute VPN routes to CE


area 0.0.0.0 {
interface so-1/0/0;
}


}


}


route-distinguisher 65535:2;


vrf-target {
import target:1:3;
}




routing-options {
auto-export;
}


}




VPN-A-hub-to-spoke {
instance-type vrf;
interface so-2/0/0.0; #receives data and joins from the
CE


provider-tunnel {


rsvp-te {


label-switched-path-template {
default-template;
}


}


}




protocols {


mvpn {
sender-site;


route-target {
import-target target target:1:3;
export-target unicast;
}


}




ospf {
export redistribute-vpn; #redistribute VPN routes to CE


area 0.0.0.0 {
interface so-2/0/0;
}


}


}


route-distinguisher 65535:2;


vrf-target {
import target:1:1;
}




routing-options {
auto-export;
}


}

Configure PE-2 for VPN-A (spoke site):



[edit]
routing-instances {


VPN-A {
instance-type vrf;
interface so-2/0/1.0;


provider-tunnel {


rsvp-te {


label-switched-path-template {
default-template;
}


}


}




protocols {


mvpn {


route–target {
import-target target target:1:4;
export-target unicast;
}


}


}


route-distinguisher 65535:3;


vrf-target {
import target:1:1;
export target:1:3;
}




routing-options {
auto-export;
}


}

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