System and method for identifying communication between virtual servers

Patent metadata

Field	Value
Publication number	US-11411775-B2
Application number	US-202017074233-A
Country	US
Kind code	B2
Filing date	Oct 19, 2020
Priority date	Sep 24, 2009
Publication date	Aug 9, 2022
Grant date	Aug 9, 2022

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 network interface configured to connect to a physical network;
a first virtual machine;
a second virtual machine; and
a hypervisor configured to encapsulate, with a virtual network identifier representing a virtual network to which the first and second virtual machines belong,
a frame including layer 2 header information which includes:
a first media access control (MAC) address of the first virtual machine;
a second media access control (MAC) address of the second virtual machine; and
a field for a virtual local area network tag (VLAN-Tag), and
wherein the hypervisor sends the encapsulated frame to the physical network via the network interface.

2. The server according to claim 1 , wherein the hypervisor receives a second frame encapsulated by the virtual network identifier and decapsulates the received second frame by removing the virtual network identifier.

3. The server according to claim 1 , wherein the first virtual network identifier and the second virtual network identifier represent virtual tenant network in a multi-tenant network.

4. A network system comprising:
a switch apparatus configured to forward a frame; and
a server including a virtual machine,
wherein the server comprises:
a network interface configured to connect to a physical network;
a first virtual machine;
a second virtual machine; and
a hypervisor configured to encapsulate, with a virtual network identifier representing a virtual network to which the first and second virtual machines belong,
a frame including layer 2 header information which includes:
a first media access control (MAC) address of the first virtual machine;
a second media access control (MAC) address of the second virtual machine; and
a field for a virtual local area network tag (VLAN-Tag), and
wherein the hypervisor sends the encapsulated frame to the physical network via the network interface.

5. The network system according to claim 4 , wherein the hypervisor receives a second frame encapsulated by the virtual network identifier and decapsulates the received second frame by removing the virtual network identifier.

6. The network system according to claim 4 , wherein the first virtual network identifier and the second virtual network identifier represent virtual tenant network in a multi-tenant network.

7. A communication method, comprising:
encapsulating, with a virtual network identifier representing a virtual network to which the first and second virtual machines belong,
a frame including layer 2 header information which includes:
a first media access control (MAC) address of the virtual machine;
a second media access control (MAC) address of the second virtual machine; and
a field for a virtual local area network tag (VLAN-Tag); and
sending the encapsulated frame to a physical network via a network interface.

8. The communication method according to claim 7 , further comprising:
receiving a second frame encapsulated by the virtual network identifier; and
decapsulating the received second frame by removing the virtual network identifier.

9. The communication method according to claim 8 , wherein the first virtual network identifier and the second virtual network identifier represent virtual tenant network in a multi-tenant network.

Assignees

• Zoom Video Communications Inc

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

• H04L69/161

  Implementation details of TCP/IP or UDP/IP stack architecture; Specification of modified or new header fields · CPC title

• H04L49/70

  Virtual switches · CPC title