Patent ID: 9432304
Filing Date: 2016-08-30
CPC Classification: G06F,H04L

Claim Text:
1. A system for supporting virtual machine live migration in a network, comprising: a first host having a first microprocessor and a second host having a second microprocessor; a first fabric adaptor associated with the first host, wherein the first fabric adaptor is associated with a first plurality of first virtual host channel adapters (HCAs), and wherein each said first virtual host channel adapter (vHCA) is associated with a first separate queue pair (QP) space; a second fabric adaptor associated with the second host, wherein the second fabric adaptor is associated with a second plurality of second virtual host channel adapters (HCAs), and wherein each said second virtual host channel adapter (vHCA) is associated with a second queue pair (QP) space; a virtual machine operating on the first host, wherein the virtual machine is attached with said first virtual host channel adapter (vHCA) that is associated with a queue pair (QP) in said first queue pair (QP) space, and wherein said virtual machine is assigned a unique Local Identifier (LID) for addressing the first vHCA; and wherein said system is configured to perform a live migration of said virtual machine from the first host to the second host; wherein, after live migration, said virtual machine is attached with said second virtual host channel adapter (vHCA) that is associated with said first queue pair (QP), and wherein said virtual machine utilizes said same unique LID for addressing the second vHCA; and wherein said first queue pair (QP) operates to signal a peer QP about the live migration and provide said peer QP with address information after migration.