NAME

en − Sun 3 Mb/s experimental Ethernet interface

SYNOPSIS

device en0 at mb0 csr 0x100 priority 3

DESCRIPTION

The en interface provides access to a 3 Mb/s Ethernet network.  The host’s address is discovered at boot time by probing the Ethernet address register.  For a general description of network interfaces, see if(4N).

The board consumes 256 bytes of Multibus I/O space starting at standard address 0x100. 

The interface handles both Internet and PUP protocol families, with the interface address maintained in Internet format.  PUP addresses are converted to Internet addresses by subsituting PUP network and host values for Internet network and imp values, and setting the Internet host number to zero. 

DIAGNOSTICS

en%d: output error.  The hardware indicated an error on the previous transmission. 

en%d: send error.  After 16 retransmissions the packet was dropped. 

en%d: input error.  The hardware indicated an error in reading a packet off the cable. 

en%d: can’t handle af%d.  The interface was handed a message with addresses formatted in an unsuitable address family; the packet was dropped. 

SEE ALSO

if (4N), inet(4F)
Sun 3Mbit Ethernet Board, User’s Manual (Sun 800-0392)

BUGS

This hardware and driver are not supported. 

Sun Release 1.1  —  Last change: 11 August 1983