VMCI Sockets 5.5 Release Notes
About VMCI Sockets
ESXi 5.5 contains no significant changes to the VMCI Sockets interfaces.
Virtual Machine Communication Interface (VMCI). ESX/ESXi 4.0 incorporated VMCI, a new virtual device to facilitate high-speed communication between virtual machines and their host. VMCI first appeared in Workstation 6.0, and does not rely on in-guest networking. The VMCI Sockets library offers a convenient interface for programming the VMCI device at the user level.
VMCI Sockets API. First introduced in VMware Workstation 6.5 and ported to ESX/ESXi 4.0, VMCI Sockets is a convenience API for the VMCI device. With minimal IP-socket code modifications, it can provide fast communication between guest virtual machines and their host.
VMCI support continues for host to guest communications. Guest to guest communications (VM to VM) were deprecated in vSphere 5.0 and Workstation 8.0. Inter-guest functionality was removed in the vSphere 5.1 release.
Changes and New Features
Known Issues and Workarounds