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1.1 ! root 1: .\" Copyright (c) 1986 Regents of the University of California. ! 2: .\" All rights reserved. The Berkeley software License Agreement ! 3: .\" specifies the terms and conditions for redistribution. ! 4: .\" ! 5: .\" @(#)qe.4 6.1 (Berkeley) 6/3/86 ! 6: .\" ! 7: .TH QE 4 "June 3, 1986" ! 8: .UC 6 ! 9: .SH NAME ! 10: qe \- DEC DEQNA Q-bus 10 Mb/s Ethernet interface ! 11: .SH SYNOPSIS ! 12: .B "device qe0 at uba? csr 174440 vector qeintr" ! 13: .SH DESCRIPTION ! 14: The ! 15: .B qe ! 16: interface provides access to a 10 Mb/s Ethernet network through ! 17: the DEC DEQNA Q-bus controller. ! 18: .PP ! 19: Each of the host's network addresses ! 20: is specified at boot time with an SIOCSIFADDR ! 21: ioctl. The ! 22: .B qe ! 23: interface employs the address resolution protocol described in ! 24: arp(4P) ! 25: to map dynamically between Internet and Ethernet addresses on the local ! 26: network. ! 27: .PP ! 28: The interface normally tries to use a ``trailer'' encapsulation ! 29: to minimize copying data on input and output. ! 30: The use of trailers is negotiated with ARP. ! 31: This negotiation may be disabled, on a per-interface basis, ! 32: by setting the IFF_NOTRAILERS ! 33: flag with an SIOCSIFFLAGS ioctl. ! 34: .SH DIAGNOSTICS ! 35: .SH SEE ALSO ! 36: inet(4F), intro(4N), arp(4P)
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