System and method for identifying communication between virtual servers

Patent metadata

Field	Value
Publication number	US-2016294580-A1
Application number	US-201615182090-A
Country	US
Kind code	A1
Filing date	Jun 14, 2016
Priority date	Sep 24, 2009
Publication date	Oct 6, 2016
Grant date	—

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

1 - 8 . (canceled)

9 . A server, comprising:
a memory storing instructions; and a processor configured to execute the instructions to:
identify an identifier of a virtual machine operating on the server;
encapsulate a layer 2 header information which includes the identifier of the virtual machine and a packet field for a VLAN-Tag of a packet, with a virtual network identifier representing a virtual network to which the virtual machine belongs; and
transmit the packet encapsulated by the virtual network identifier.

10 . The server according to claim 9 , wherein the processor is further configured to execute the instructions to:
receive a packet; and decapsulate the received packet by removing the virtual network identifier.

11 . The server according to claim 9 , wherein the virtual network identifier represents a virtual tenant network in a multi-tenant network.

12 . A network system comprising:
a switch apparatus configured to forward a packet; and a server configured to manage a virtual machine, wherein the server comprises:
a memory storing instructions; and
a processor configured to execute the instructions to:
identify an identifier of the virtual machine operating on the server;
encapsulate a layer 2 header information which includes the identifier of the virtual machine and a packet field for a VLAN-Tag of a packet, with a virtual network identifier representing a virtual network to which the virtual machine belongs; and
transmit the packet encapsulated by the virtual network identifier.

13 . The network system according to claim 12 , wherein the processor is further configured to execute the instructions to:
receive a packet; and decapsulate the received packet by removing the virtual network identifier.

14 . The network system according to claim 12 , wherein the virtual network identifier represents a virtual tenant network in a multi-tenant network.

15 . A communication method, comprising:
identifying an identifier of a virtual machine operating on the server; encapsulating a layer 2 header information which includes the identifier of the virtual machine and a packet field for a VLAN-Tag of a packet, with a virtual network identifier representing a virtual network to which the virtual machine belongs; and transmitting the packet encapsulated by the virtual network identifier.

16 . The communication method according to claim 15 , further comprising:
receiving a packet; and decapsulating the received packet by removing the virtual network identifier.

17 . The communication method according to claim 15 , wherein the virtual network identifier represents a virtual tenant network in a multi-tenant network.

18 . 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 which includes the identifier of a virtual machine and a packet field for a VLAN-Tag, wherein the virtual machine operates on the server;
encapsulate the received packet with a virtual network identifier representing a virtual network to which the virtual machine belongs; and
transmit the packet encapsulated by the virtual network identifier.

19 . The network device according to claim 18 , wherein the processor is further configured to execute the instructions to:
receive an encapsulated packet by the virtual network identifier; and decapsulate the encapsulated packet by removing the virtual network identifier.

20 . The network device according to claim 18 , wherein the virtual network identifier represents a virtual tenant network in a multi-tenant network.

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

• H04L61/256

  NAT traversal · CPC title

• H04L69/22

  Parsing or analysis of headers · CPC title