Leveraging a virtual router to bridge between an underlay and an overlay

1. A method for bridging data traffic between an underlay network and an overlay network, the method comprising:

providing, by a mobile network operator, a distributed unit (DU) of a fifth-generation (5G) cellular telecommunication network radio access network (RAN) that is served by a particular 5G cellular site base station, wherein the DU:

is associated with a primary 5G Node B (gNB) identified by a primary identifier (ID); and

is in operable communication with a corresponding primary central unit control plane (CU-CP) of a 5G primary centralized unit (CU) that is hosted on a cloud-native virtualized compute instance in a primary cloud availability zone and is also associated with the primary gNB identified by the primary ID;

providing access to an overlay network that includes virtual routers, wherein the overlay network is built above the underlay network, the underlay network including physical infrastructure that delivers packets;

providing a UPFv (User Plane Function for Voice) that acts as an anchor for telephony voice functions;

establishing routing protocols to transmit from the UPFv to one or more of the virtual routers;

configuring one or more of the virtual routers to bridge an outgoing communication from the UPFv to a public cloud provider;

instructing the virtual router to send the outgoing communication through the public cloud provider to the underlay network; and

instructing the virtual router to receive an incoming communication from the underlay network through the public cloud provider to the UPFv.

2. The method of claim 1 further comprising: updating a Virtual Private Cloud route table.

3. The method of claim 1 , further comprising: updating a Virtual Router security group.

4. The method of claim 1 , further comprising: accessing a Network Address Translation (NAT) Gateway to access the Internet.

5. The method of claim 1 , wherein the UPFv uses Over the Air (OTA) functions to communicate with the underlay network.

6. The method of claim 1 , wherein the UPFv uses NRS functions to communicate with the underlay network.

7. The method of claim 1 , wherein the UPFv uses DNS functions to communicate with the underlay network.

8. The method of claim 1 , wherein an OTA IP pool advertises over a 5G Core.

9. A system for bridging data traffic between an underlay network and an overlay network, the system comprising:

at least one memory that stores computer executable instructions; and

at least one processor that executes the computer executable instructions to cause actions to be performed, the actions including:

provide, by a mobile network operator, a distributed unit (DU) of a fifth-generation (5G) cellular telecommunication network radio access network (RAN) that is served by a particular 5G cellular site base station, wherein the DU:

is associated with a primary 5G Node B (gNB) identified by a primary identifier (ID); and

is in operable communication with a corresponding primary central unit control plane (CU-CP) of a 5G primary centralized unit (CU) that is hosted on a cloud-native virtualized compute instance in a primary cloud availability zone and is also associated with the primary gNB identified by the primary ID;

provide access to an overlay network that includes virtual routers, wherein the overlay network is built above the underlay network, the underlay network including physical infrastructure that delivers packets;

provide a UPFv (User Plane Function for Voice) that acts as an anchor for telephony voice functions;

establish routing protocols to transmit from the UPFv to one or more of the virtual routers;

configure one or more of the virtual routers to bridge an outgoing communication from the UPFv to a public cloud provider;

instruct the virtual router to send the outgoing communication through the public cloud provider to the underlay network; and

instruct the virtual router to receive an incoming communication from the underlay network through the public cloud provider to the UPFv.

10. The system of claim 9 further comprising: updating a Virtual Private Cloud route table.

11. The system of claim 9 , further comprising: updating a Virtual Router security group.

12. The system of claim 9 , further comprising: accessing a Network Address Translation (NAT) Gateway to access the Internet.

13. The system of claim 9 , wherein the UPFv uses OTA functions to communicate with the underlay network.

14. The system of claim 9 , wherein the UPFv uses NRS functions to communicate with the underlay network.

15. The system of claim 9 , wherein the UPFv uses DNS functions to communicate with the underlay network.

16. The system of claim 9 , wherein an OTA pool advertises over a 5G Core.

17. A non-transitory computer-readable storage medium having computer-executable instructions stored thereon that, when executed by at least one processor, cause the at least one processor to cause actions to be performed, the actions including:

provide, by a mobile network operator, a distributed unit (DU) of a fifth-generation (5G) cellular telecommunication network radio access network (RAN) that is served by a particular 5G cellular site base station, wherein the DU:

is associated with a primary 5G Node B (gNB) identified by a primary identifier (ID); and

is in operable communication with a corresponding primary central unit control plane (CU-CP) of a 5G primary centralized unit (CU) that is hosted on a cloud-native virtualized compute instance in a primary cloud availability zone and is also associated with the primary gNB identified by the primary ID;

provide access to an overlay network that includes virtual routers, wherein the overlay network is built above an underlay network, the underlay network including physical infrastructure that delivers packets;

provide a UPFv (User Plane Function for Voice) that acts as an anchor for telephony voice functions;

establish routing protocols to transmit from the UPFv to one or more of the virtual routers;

configure one or more of the virtual routers to bridge an outgoing communication from the UPFv to a public cloud provider; and

instruct the virtual router to send the outgoing communication through the public cloud provider to the underlay network.

18. The non-transitory computer-readable storage medium of claim 17 , the actions further including:

instruct the virtual router to receive an incoming communication from the underlay network through the public cloud provider to the UPFv.