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Method and System for Dynamically Managing Virtual Local Area Networks (VLAN) Membership in Virtualization Environment

IP.com Disclosure Number: IPCOM000235805D
Publication Date: 2014-Mar-25
Document File: 1 page(s) / 35K

Publishing Venue

The IP.com Prior Art Database

Abstract

A method and system for dynamically managing Virtual Local Area Networks (VLAN) membership in virtualization environment is disclosed.

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Method and System for Dynamically Managing Virtual Local Area Networks (VLAN) Membership in Virtualization Environment

In cloud environment, Virtual Local Area Networks (VLAN) tagging is used between the hypervisor and ethernet switches, so that each virtual machine belongs to one or more VLANs which are distinct from other virtual machines on a hypervisor. Currently, several strategies are used for managing VLAN memberships, each having one or more limitations.

Disclosed is a method and system for dynamically managing VLAN membership in virtualization environment. The method and system creates a virtual machine with knowledge of required physical ports and a VLAN tag (if any) to be attached to all traffic. When a hypervisor is required to create a virtual switch with a previously unused physical port and/or a VLAN configuration, then the hypervisor begins an appropriate process configuration. The appropriate process configuration includes notifying the virtual switch regarding a VLAN topology change and also notifying the virtual switch to maintain connection. When the hypervisor determines that a VLAN is no longer required, the hypervisor de-registers the VLAN from the virtual switch to which the hypervisor is connected.

For instance, a Generic VLAN Registration Protocol (GVRP) join message is sent in a GVRP configuration and the hypervisor configures itself to respond appropriately to GVRP "Leave All" messages. However, when the hypervisor determines that VLA...