Systems and methods for optimizing layer three routing in an information handling system

摘要

An information handling system is provided. The information handling system includes systems and methods for providing an anycast MAC addressing of a virtual redundancy router protocol instance that spans a plurality of aggregation switches. The anycast MAC address may be provided by a virtual bridging device and then used as an address of a virtual IP instance accessible through the virtual bridging device. Using the anycast MAC address with the virtual IP instance, a packet to be routed from one rack to another rack in a data center may be dynamically routed based a current load distribution.

主权项

1. An information handling system, comprising:
a plurality of racks of servers, each of the plurality of racks having a top-of-rack switch with each top-of-rack switch configured to provide a bridging device; a plurality of aggregation switches, each aggregation switch being coupled to each of the top-of-rack switches and each aggregation switch configured to provide a bridging device; and a virtual bridging device providing layer three routing services; wherein a first one of the top-of-rack switches is configured to:
receive an address resolution protocol (ARP) packet from a connected server on a source virtual local area network (VLAN);transmit the ARP packet to the plurality of aggregation switches;receive an ARP reply from one of the plurality of aggregation switches, the ARP reply including an anycast media access control (MAC) address for the virtual bridging device;receive a data packet from the connected server, the data packet including the anycast MAC address; andforward the data packet using equal-cost multi-path routing to any one of the plurality of aggregation switches.