1. Data Center Interconnection with EVPN VXLAN Overlay
(An example only for internal discussion)

2. VoLTE Use Case DCI Overlay and Underlay Network

3. (SDN Local Controller) (SDN Local Controller)
Restful/Restconf
Example for clarifications
OpenFlow
ONAP SDN-C
(Super Controller)
Netconf
MultiVIM
Neutron
Neutron
Plug-in
Plug-in
DC Controller
(SDN Local Controller)
DC Controller
(SDN Local Controller)
Vxlan
Vxlan
Gateway
Gateway
Vxlan
Inside DC
DCI
Inside DC

4. The Basic Steps to Set up DCI with EVPN VXLAN Overlay
Step 1: SDN local controller takes over local DC network control from Neutron, and provides plugin for Neutron Step 2: SDN local controller instructs local DC-GW to set up EVPN and create VXLAN tunnel with remote DC-GW Step 3: Local network is connected to remote DC with EVPN VXLAN overlay (see details in the next two slides)

5. REST API to Connect Local L3 Network to Remote DC via EVPN VXLAN Overlay
POST local-controller-ip:/v2.0/l3-dci-connects {
" l3-dci-connect": {
" id ": "CDD702C FE6-A5AD-3A9C9E265309",
"name": "PODX-routerY",
"description": "VPC A connect VPC B",
"router_id": "CBB702C A5AD-3A9C9E265309",
"firewall_enable": "false"
"local_networks": ["8a41319d-87cf-4cd f4a1066c63a8"],
"local_network_all ":false,
"evpn_irts": ["1:5000"],
"evpn_erts": ["1:5000" ],
"l3_vni": "5001", }

6. REST API to Connect Local L2 Network to Remote DC via EVPN VXLAN Overlay
POST local-controller-ip:/v2.0/l2-dci-connects {
"l2_dci_connect": {
" id ": "CCB702C FE6-A5AD-3A9C9E265309",
"name": "PODX SW1",
"description": "VPC A L2 CONNECT,
"network_id": "6d2c55ee-f11c-4e1c-a756-91b803588e7b ",
"vni": "6000",
"evpn_irts": ["1:6000" ],
"evpn_erts": ["1:6000"] }