1*47674Scael.\" Copyright (c) 1983, 1991 The Regents of the University of California. 236756Sbostic.\" All rights reserved. 328993Smckusick.\" 443582Strent.\" %sccs.include.redist.man% 528993Smckusick.\" 6*47674Scael.\" @(#)qe.4 6.4 (Berkeley) 03/27/91 736756Sbostic.\" 8*47674Scael.Dd 9*47674Scael.Dt QE 4 vax 10*47674Scael.Os BSD 4.3 11*47674Scael.Sh NAME 12*47674Scael.Nm qe 13*47674Scael.Nd 14*47674Scael.Tn DEC DEQNA 15*47674Scael.Tn Q-bus 16*47674Scael10 Mb/s Ethernet interface 17*47674Scael.Sh SYNOPSIS 18*47674Scael.Cd "device qe0 at uba? csr 174440 vector qeintr" 19*47674Scael.Sh DESCRIPTION 2028993SmckusickThe 21*47674Scael.Nm qe 2228993Smckusickinterface provides access to a 10 Mb/s Ethernet network through 23*47674Scaelthe 24*47674Scael.Tn DEC DEQNA 25*47674Scael.Tn Q-bus 26*47674Scaelcontroller. 27*47674Scael.Pp 2828993SmckusickEach of the host's network addresses 29*47674Scaelis specified at boot time with an 30*47674Scael.Dv SIOCSIFADDR 31*47674Scael.Xr ioctl 2 . 32*47674ScaelThe 33*47674Scael.Nm qe 3428993Smckusickinterface employs the address resolution protocol described in 35*47674Scael.Xr arp 4 3628993Smckusickto map dynamically between Internet and Ethernet addresses on the local 3728993Smckusicknetwork. 38*47674Scael.Pp 39*47674ScaelThe interface normally tries to use a 40*47674Scael.Dq trailer 41*47674Scaelencapsulation 4228993Smckusickto minimize copying data on input and output. 43*47674ScaelThe use of trailers is negotiated with 44*47674Scael.Tn ARP . 4528993SmckusickThis negotiation may be disabled, on a per-interface basis, 46*47674Scaelby setting the 47*47674Scael.Dv IFF_NOTRAILERS 48*47674Scaelflag with an 49*47674Scael.Dv SIOCSIFFLAGS 50*47674Scael.Xr ioctl . 51*47674Scael.Sh SEE ALSO 52*47674Scael.Xr netintro 4 , 53*47674Scael.Xr inet 4 , 54*47674Scael.Xr arp 4 55*47674Scael.Sh HISTORY 56*47674ScaelThe 57*47674Scael.Nm 58*47674Scaeldriver appeared in 59*47674Scael.Bx 4.3 . 60