Systems and methods of extending on premise network into the cloud

Patent metadata

Field	Value
Publication number	US-10057084-B2
Application number	US-201514876363-A
Country	US
Kind code	B2
Filing date	Oct 6, 2015
Priority date	Oct 6, 2015
Publication date	Aug 21, 2018
Grant date	Aug 21, 2018

Abstract

The present disclosure is directed towards systems and methods for extending VLANs into the cloud using VXLANs. A method for extending an on-premise network to the cloud is described. A cloud bridge connector (CBC) executing on a device in communication with an on-premise network and a cloud network receives a packet from the on-premise network. The CBC identifies, from the packet, a virtual local area network (VLAN) identifier of the packet. The VLAN identifier identifies a VLAN established on the on-premise network. The CBC determines, via a mapping table, a VXLAN identifier of a VXLAN established on the cloud network to transmit the packet on the cloud network. The device modifies the packet to identify the VXLAN identifier and transmits the modified packet on the cloud network.

First claim

What is claimed is:

1. A method for extending an on-premise network to the cloud, comprising:
receiving, by a cloud bridge connector (CBC) executing on a device in communication with an on-premise network and a cloud network, a packet from the on-premise network;
identifying, by the CBC, from the packet, a virtual local area network (VLAN) identifier of the packet, the VLAN identifier identifying a VLAN established on the on-premise network;
determining, by the CBC, via a mapping table, a VXLAN identifier of a VXLAN established on the cloud network to transmit the packet on the cloud network, the mapping table mapping VLAN identifiers to virtual extensible local area network (VXLAN) identifiers;
modifying, by the device, the packet to identify the VXLAN identifier; and
transmitting, by the device, the modified packet on the cloud network.

2. The method of claim 1 , wherein the CBC terminates a tunnel from the on-premise network to the cloud network.

3. The method of claim 2 , wherein the mapping table is unique to the tunnel.

4. The method of claim 1 , further comprising storing the mapping table on the CBC.

5. The method of claim 1 , wherein the CBC terminates a plurality of tunnels from a plurality of on-premise networks to the cloud network.

6. The method of claim 1 , wherein the VXLAN identifier is unique to a customer.

7. The method of claim 1 , wherein:
the VLAN identifier is a first VLAN identifier;
the mapping table maps the first VLAN identifier and a second VLAN identifier to the same VXLAN identifier, and
modifying the packet to identify the VXLAN identifier includes modifying the packet to identify the VXLAN identifier and the first VLAN identifier.

8. The method of claim 1 , wherein modifying the packet to identify the VXLAN identifier includes modifying the packet to include a VXLAN tag corresponding to the VXLAN identifier.

9. The method of claim 1 , further comprising establishing, by the device, a tunnel connecting the on-premise network to the cloud network.

10. The method of claim 1 , wherein the CBC stores a plurality of mapping tables, each of the mapping tables corresponding to a customer.

11. A system for extending an on-premise network to the cloud, comprising:
a device in communication with an on-premise network and a cloud network;
a cloud bridge connector (CBC) executing on the device and configured to
receive a packet from the on-premise network,
identify, from the packet, a virtual local area network (VLAN) identifier of the packet, the VLAN identifier identifying a VLAN established on the on-premise network; and
determine, via a mapping table, a VXLAN identifier of a VXLAN established on the cloud network to transmit the packet on the cloud network, the mapping table mapping VLAN identifiers to virtual extensible local area network (VXLAN) identifiers; and
wherein the device is configured to
modify the packet to identify the VXLAN identifier; and
transmit the modified packet on the cloud network.

12. The system of claim 11 , wherein the CBC terminates a tunnel from the on-premise network to the cloud network.

13. The system of claim 12 , wherein the mapping table is unique to the tunnel.

14. The system of claim 11 , wherein the mapping table is stored on the CBC.

15. The system of claim 11 , wherein the CBC terminates a plurality of tunnels from a plurality of on-premise networks to the cloud network.

16. The system of claim 11 , wherein the VXLAN identifier is unique to a customer.

17. The system of claim 11 , wherein:
the VLAN identifier is a first VLAN identifier;
the mapping table maps the first VLAN identifier and a second VLAN identifier to the same VXLAN identifier, and
wherein modifying the packet to identify the VXLAN identifier includes modifying the packet to identify the VXLAN identifier and the first VLAN identifier.

18. The system of claim 11 , wherein the CBC is configured to modify the packet to include a VXLAN tag corresponding to the VXLAN identifier.

19. The system of claim 11 , wherein the device is configured to establish a tunnel connecting the on-premise network to the cloud network.

20. The system of claim 11 , wherein the CBC stores a plurality of mapping tables, each of the mapping tables corresponding to a customer.

Assignees

• Citrix Systems Inc

Inventors

• Mithyantha Sharvari
• Singareddy Manohar
• Devarapalli Sridhar

Classifications

• H04L12/4641 Primary

  Virtual LANs, VLANs, e.g. virtual private networks [VPN] (LAN interconnection over a bridge based backbone H04L12/462; encapsulation techniques H04L12/4633; routing of packets H04L45/00; packet switches H04L49/00; virtual private networks for security H04L63/0272) · CPC title

• H04L67/10

  in which an application is distributed across nodes in the network (software deployment G06F8/60; multiprogramming arrangements G06F9/46) · CPC title