V Kernel

• Kernel message IPC, no special protocol needed
• Diskless $\approx$ Local
• High speed LAN

IPC

• Synchronous

  • Data as a reply
  • Streaming, only acknowledge after receiving the last package, rather than on each one

• Fixed size MSG (32Bytes)

  • No buffering & queueing problem, move directly from source address space into the NIC, and directly from the NIC to the destination address space

• Separate small messages (control) and data transfer facility (data)

• MoveTo and MoveFrom for transferring a large amount of data

• Remote Segment Access
  • ReceiveWithSegment and ReplyWithSegment for page-level file access requests. Eliminates extra packets by combining the reply message packet with the data to be returned