Patent ID: 9288160
Filing Date: 2016-03-15
CPC Classification: H04L

Claim Text:
1. An Infiniband subnet, comprising: a plurality of Infiniband Local Identifier (LID) domains, each LID domain including a plurality of nodes interconnected in communication with other nodes in the LID domain via at least one LID switch; and at least one Infiniband Global Identifier (GID) switch, each GID switch connected in communication with at least one LID switch in each of at least two LID domains, wherein the LID switches and each GID switch is configured to route messages between the plurality of nodes such that communications between nodes within a LID domain employ at least one LID switch and communications between nodes in different LID domains employ at least two LID switches and at least one GID switch; and wherein each of the GID switches employs a GID switch routing table having a plurality of fields including a Destination GID (DGID) field and a new Destination LID (DLID) field, wherein packets are routed via a GID switch by inspecting a packet DGID and assigning a new DLID address to the packet based on a corresponding entry in the GID switch routing table and routing the packet to a corresponding port defined for a routing table entry having a DGID value or DGID range corresponding to the packet DGID.