System and method for identifying communication between virtual servers

Patent metadata

Field	Value
Publication number	US-9391804-B2
Application number	US-201514644076-A
Country	US
Kind code	B2
Filing date	Mar 10, 2015
Priority date	Sep 24, 2009
Publication date	Jul 12, 2016
Grant date	Jul 12, 2016

Abstract

A server, includes a virtual machine identifier assigning section to assign an identifier of a virtual machine operating on the server; and a network interface to transmit a packet including a Layer 2 header information which includes the identifier of the virtual machine and a first packet field for a VLAN-Tag, wherein the network interface transmits the packet to a packet encapsulate section which encapsulates a second packet field including the Layer 2 header information with a virtual network identifier representing a virtual network to which the virtual machine belongs.

First claim

The invention claimed is:

1. A server, comprising:
a memory storing instructions; and
a processor configured to execute the instructions to:
assign an identifier of a virtual machine operating on the server;
transmit a packet including a Layer 2 header information which includes the identifier of the virtual machine and a first packet field for a VLAN-Tag; and
encapsulate the packet, to generate a second packet field including the Layer 2 header information, with a virtual network identifier representing a virtual network to which the virtual machine belongs.

2. The server according to claim 1 , wherein the processor is further configured to execute the instructions to:
receive the packet; and
remove the virtual network identifier from the packet.

3. A system, comprising:
a virtual network; and
a server, comprising:
a memory storing instructions; and
a processor configured to execute the instructions to:
assign an identifier of a virtual machine operating on the server, the virtual machine belonging to the virtual network;
transmit a packet including a Layer 2 header information which includes the identifier of the virtual machine and a first packet field for a VLAN-Tag; and
encapsulate the packet, to generate a second packet field including the Layer 2 header information, with a virtual network identifier representing the virtual network.

4. The system according to claim 3 , wherein the processor is further configured to execute the instructions to:
receive the packet; and
remove the virtual network identifier from the packet.

5. A method, comprising:
assigning an identifier of a virtual machine operating on a server;
transmitting a packet including a Layer 2 header information which includes the identifier of the virtual machine and a first packet field for a VLAN-Tag; and
encapsulating the packet, to generate a second packet field including the Layer 2 header information, with a virtual network identifier representing a virtual network to which the virtual machine belongs.

6. The method according to claim 5 , further comprising:
receiving the packet; and
removing the virtual network identifier from the packet.

7. A network device, comprising:
a memory storing instructions; and
a processor configured to execute the instructions to:
receive a packet including a Layer 2 header information, the Layer 2 header information including an identifier of a virtual machine operating on a server and a first packet field for a VLAN-Tag; and
encapsulate the packet, to generate a second packet field including the Layer 2 header information, with a virtual network identifier representing a virtual network to which the virtual machine belongs.

8. A method, comprising:
receiving a packet including a Layer 2 header information, the Layer 2 header information including an identifier of a virtual machine operating on a server and a first packet field for a VLAN-Tag; and
encapsulating the packet, to generate a second packet field including the Layer 2 header information, with a virtual network identifier representing a virtual network to which the virtual machine belongs.

Assignees

• Nec Corp

Inventors

• Iwata Atsushi
• Iijima Akio

Classifications

• H04L45/745

  Address table lookup; Address filtering · CPC title

• H04L12/4666 Primary

  Operational details on the addition or the stripping of a tag in a frame, e.g. at a provider edge node · CPC title

• H04L12/4633 Primary

  Interconnection of networks using encapsulation techniques, e.g. tunneling · CPC title

• H04L45/741

  Routing in networks with a plurality of addressing schemes, e.g. with both IPv4 and IPv6 · CPC title

• H04L45/586

  of virtual routers · CPC title