Virtual Port Extender

摘要

A system, method, and a computer readable medium for transmitting a packet in a network are provided. An overlay network is a virtual network that transmits a packet between a plurality of controlling bridges and a plurality of port extenders. A port extender connects to multiple servers in the server rack and a controlling bridge transmits packets over a network outside of the servers in the server rack. A mapping between virtual ports of a port extender and a controlling bridge is provided, such that the mapping enables the packet transmission in the overlay network.

主权项

1. A system for transmitting packets, comprising:
a plurality of port extenders within a server rack configured to receive a packet from a server in the server rack; a plurality of controlling bridges configured to transmit the packet over a network outside of the server rack; and an overlay network configured on top of a physical network between the plurality of port extenders and the plurality of controlling bridges and configured to:
connect, using a virtual tunnel, a port extender in the plurality of port extenders to a controlling bridge in the plurality of controlling bridges, wherein the port extender and the controlling bridge do not have a direct physical connection; andtransmit, using the virtual tunnel, the packet between the port extender and the controlling bridge.