NAME

vb − VME backplane

DESCRIPTION

ISI Cluster CPUs communicate with the Server CPU through the ISI vb (VME backplane) device.  vb implements an Ethernet-like interface using 256kb of shared memory into which the Cluster and Server cpus pass Ethernet packets as though the shared memory were an Ethernet controller.  vb, which UNIX treats as an Ethernet device, is autoconfigured at boot time and ifconfig’d by rc.local when the system is going multiuser. 
 

INTEGRATED SOLUTIONS 4.3 BSD  —  October 25, 1988