Proxy address resolution protocol on a controller device

摘要

Techniques are presented herein for reducing network congestion in data center environments. A controller device in a network receives a registration request from a physical switch device and from a virtual switch that is hosted by a server device in the network. The controller device registers the physical switch device such that the controller device is able to send configuration messages to the physical switch device. The controller device also registers the virtual switch such that the controller device is able to receive mapping information from the virtual switch. The controller device receives from the virtual switch the mapping information comprising Media Access Control address information of one or more virtual machines that are in communication with the virtual switch. The mapping information is stored in a database maintained by the controller device.

主权项

1. A method comprising:
at a controller device in a network, receiving a registration request message from a physical switch device and from a virtual switch that is hosted by a server device in the network; registering the physical switch device such that the controller device is able to send configuration messages to the physical switch device; registering the virtual switch such that the controller device is able to receive mapping information from the virtual switch; receiving from the virtual switch the mapping information comprising Media Access Control address information of one or more virtual machines that are in communication with the virtual switch; storing the mapping information in a database maintained by the controller device; generating a distributive table comprising the Media Access Control address information in the database and a source identifier for each Media Access Control address, the source identifier indicating whether or not each Media Access Control address is local or remote to the controller device; sending the distributive table to a remote controller device in the network; receiving a remote distributive table from the remote controller device in the network; and updating the database with Media Access Control address information contained in the remote distributive table.