Networking Traditionally only Wyse had sane (BSD) networking even saner than Linux (at the syscall level) Else STREAMS :( Else ither /dev/socksys basically BSDish networking ontop of a magic chardevice plus a magic dispatch syscall (socksys_syscall) plus many many ioctl works mostly ... or TLI/XTI completly different from BSD networking even more ioctl.. worked once on client side (have no testcases) Trend goes towards BSDish semantics at the syscall level Solaris since 2.6 (emulated) UnixWare since 7.x (slightly different API, WIP)