Overall Architecture 1st Scenario HQ Data Center Loopback Loopback .66 RMS 1 OSN 1800 II 172.27.16.112/29 100Mo .65 Lien 01 .74 OSN 1800 II RMS 2 172.27.16.136/29 100Mo .73 Lien 02 Spoke Spoke Loopback Loopback Spoke Loopback Overall Architecture 2nd Scenario HQ Data Center .66 .75 RMS 1 172.27.16.64/29 OSN 1800 II 100Mo .65 .67 .74 OSN 1800 II 100Mo .73 RMS 2 172.27.16.72/29