Systems and methods for preventing source suppression of routed information in a load-balanced network

1. An information handling system, the system comprising:

a server; and

a first switch in communication with the server over a physical port, the first switch comprising:

a network interface component configured to receive information from the server on the physical port;

a memory configured to store an address of the server and an address of a virtual port in an address table, the virtual port internally pointing to the physical port; and

one or more processors coupled to the network interface component and the memory, the one or more processors configured to perform operations comprising:

identifying the physical port on which the information from the server arrives; and

in response to identifying the physical port on which the information from the server arrives:

assigning the physical port to the virtual port for data addressed to the server; and

sending the data addressed to the server while avoiding source suppression active on the physical port by sending the data addressed to the server to the physical port through the virtual port.

2. The system of claim 1 , wherein the operations further comprise routing information from a different network to the server over the physical port pointed to by the virtual port stored in the address table.

3. The system of claim 1 , wherein the address of the server comprises at least one of an internet protocol (IP) address and a media access control (MAC) address.

4. The system of claim 1 , further comprising a gateway router in communication with the first switch over a communications link.

5. The system of claim 1 , wherein the operations further comprise changing a destination address of the information to a correct destination address of the server.

6. The system of claim 1 , wherein the server comprises a load balancing server.

7. The system of claim 1 , wherein the server and the first switch are on a same network.

8. The system of claim 1 , wherein the server is further configured to receive address resolution protocol (ARP) requests and send ARP responses including an address of the server.

9. The system of claim 1 , wherein the first switch comprises a layer 2 (L2) switch.

10. A switch comprising:

one or more processors; and

a memory, the memory storing instructions that, when executed by the one more processors, cause the switch to perform a method comprising:

identifying a physical port in communication with a server and an address of the server;

storing the address of the server and an identifier of the physical port;

receiving information from a gateway device;

in response to identifying the address of the server and the physical port in communication with the server, assigning the physical port to a virtual port that internally points to the physical port;

receiving data addressed to the server; and

routing the data addressed to the server while avoiding source suppression active on the physical port by sending the data addressed to the server to the physical port through the virtual port.

11. The switch of claim 10 , wherein identifying the physical port in communication with the server and the address of the server comprises identifying the physical port in communication with the server and the address of the server from address resolution protocol (ARP) responses sent through the switch.

12. The switch of claim 11 , wherein the address of the server comprises at least one of an internet protocol (IP) address and a media access controller (MAC) address.

13. The switch of claim 11 , wherein routing the data addressed to the server comprises changing a destination address of the information to a correct destination address of the server.

14. The switch of claim 10 , wherein the server comprises a load balancing server.

15. The switch of claim 14 , wherein the server is on a same network as the switch.

16. A method of routing information from a second network to a server on a first network, the method comprising:

identifying a physical port in communication with the server and an address of the server;

storing the address of the server and an identifier of the physical port in a memory;

receiving information from a gateway device;

in response to identifying the address of the server and the physical port in communication with the server, assigning the identified physical port to a virtual port that internally points to the physical port;

receiving data addressed to the server; and

routing the data addressed to the server to the server while avoiding source suppression active on the physical port by sending the data addressed to the server to the physical port through the virtual port.

17. The method of claim 16 , wherein identifying the physical port in communication with the server and the address of the server comprises identifying the physical port in communication with the server and the address of the server from address resolution protocol (ARP) responses.

18. The method of claim 16 , wherein the address of the server comprises at least one of an internet protocol (IP) address and a media access controller (MAC) address.

19. The method of claim 16 , wherein routing the data addressed to the server comprises changing a destination address of the information to a correct destination address of the server.

20. The method of claim 16 , wherein the server comprises a load balancing server.