System and method for supporting sub-subnet in an infiniband (IB) network

摘要

A system and method can support multiple domains in an InfiniBand (IB) fabric. The IB fabric can include one or more subnets, wherein each said subnet contains one or more switch nodes. Additionally, at least one said subnet can be divided into one or more sub-subnets, wherein each said sub-subnet is managed by a separate sub-subnet manager that is associated with a unique management key, and wherein said one or more sub-subnets are connected by one or more sub-subnet gateway switch nodes, wherein each sub-subnet gateway switch node belongs to one sub-subnet.

主权项

1. A system for supporting multiple domains in an InfiniBand (IB) fabric, comprising:
a plurality of subnets, including a first subnet and a second subnet wherein the first subnet comprises a first subnet manager (SM), and the second subnet comprises a second subnet manager (SM); wherein the second subnet comprises a plurality of sub-subnets, including at least a first sub-subnet (SSN) and a second sub-subnet (SSN); wherein said first sub-subnet comprises a first sub-subnet gateway switch node and a first sub-subnet manager that is associated with a first unique management key, and a first SSN prefix attribute which separately identifies the second subnet and the first SSN; and wherein said second SSN comprises a second sub-subnet gateway switch node, and a second sub-subnet manager (SSM) associated with a second unique management key and a second SSN prefix attribute which separately identifies the second subnet and the second SSN.