Enhanced service node network infrastructure for L2/L3 GW in cloud

A system comprising:

• a Service Node;
• one or more virtual machines (VMs) in connection with the Service Node;
• and
• a processor for executing instructions stored in memory, wherein execution of the instructions by the processor executes:
• routing traffic from a first virtual machine (VM) to a first centralized gateway (CGW) through an L2 Virtual Extensible Local Area Network (VXLAN) fabric, wherein the first CGW is included within a Service Node, wherein the Service Node includes a centralized policy for both L2 functions and L3 functions, and the first CGW integrates both L2 gateways and L3 gateways;
• translating a source Internet Protocol (IP) address of the traffic from a private IP address of the first VM to a floating IP address;
• routing, based on the floating IP address, the traffic within the Service Node, the traffic being routed by an access Bridge-Domain (BD) from an ingress bridge-domain virtual interface (BD-VIF) to an egress BD-VIF;
• translating the floating IP address to a private IP address of a destination VM;
• and
• routing the traffic from a second CGW that integrates both L2 gateways and L3 gateways to the destination VM.

A non-transitory computer-readable storage medium, the computer-readable storage medium including instructions that when executed by a computer, cause the computer to:

• route traffic from a first virtual machine (VM) to a first centralized gateway (CGW) through an L2 Virtual Extensible Local Area Network (VXLAN) fabric, wherein the first CGW is included within a Service Node, wherein the Service Node includes a centralized policy for both L2 functions and L3 functions, and the first CGW integrates both L2 gateways and L3 gateways;
• translate a source Internet Protocol (IP) address of the traffic from a private IP address of the first VM to a floating IP address;
• route, based on the floating IP address, the traffic within the Service Node, the traffic being routed by an access Bridge-Domain (BD) from an ingress bridge-domain virtual interface (BD-VIF) to an egress BD-VIF;
• translate the floating IP address to a private IP address of a destination VM;
• and
• route the traffic from a second CGW that integrates both L2 gateways and L3 gateways to the destination VM.