TAGGING VIRTUAL OVERLAY PACKETS IN A VIRTUAL NETWORKING SYSTEM

摘要

Embodiments of the invention provide a method for packet distribution in a virtual networking system comprising multiple virtual networks interconnected over an underlying layer network, wherein each virtual network comprises one or more computing nodes. The method comprises, for each virtual network, sending at least one outgoing packet targeting a computing node at a different virtual network, and receiving at least one incoming packet targeting a computing node of the virtual network. Each packet has a corresponding virtual networking tag that includes routing information identifying a destination virtual network for the packet.

主权项

1. A method for packet distribution in a virtual networking system comprising at least a first virtual network and a second virtual network, the method comprising:
at a first virtual switch for the first virtual network:
maintaining information mapping each virtual switch of the virtual networking system to a corresponding virtual network identifier (VNID) for a virtual network that includes the virtual switch;receiving, from a virtual machine of the first virtual network, an outgoing packet targeting a different virtual machine of the second virtual network; andbased on the information maintained, tagging the outgoing packet with a first extended virtual networking tag comprising a VNID for the second virtual network, wherein the outgoing packet is encapsulated with an overlay header based on the first extended virtual networking tag before the outgoing packet is distributed to the second virtual network.