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Annotation of 43BSDTahoe/man/man4/vax/pcl.4, revision 1.1

1.1     ! root        1: .\" Copyright (c) 1983 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: .\"    @(#)pcl.4       6.2 (Berkeley) 5/21/86
        !             6: .\"
        !             7: .TH PCL 4 "May 21, 1986"
        !             8: .UC 5
        !             9: .SH NAME
        !            10: pcl \- DEC CSS PCL-11 B Network Interface
        !            11: .SH SYNOPSIS
        !            12: .B "device pcl0 at uba? csr 164200 vector pclxint pclrint"
        !            13: .SH DESCRIPTION
        !            14: The 
        !            15: .I pcl
        !            16: device provides an IP-only interface to the DEC CSS PCL-11
        !            17: time division multiplexed network bus.
        !            18: The controller itself is not accessible to users.
        !            19: .PP
        !            20: The hosts's address is specified with the SIOCSIFADDR ioctl.
        !            21: The interface will not transmit or receive any data before
        !            22: its address is defined.
        !            23: .PP
        !            24: As the PCL-11 hardware is only capable of having 15 interfaces per network,
        !            25: a single-byte host-on-network number is used, with range [1..15] to match
        !            26: the TDM bus addresses of the interfaces.
        !            27: .PP
        !            28: The interface currently only supports the Internet protocol family
        !            29: and only provides ``natural'' (header) encapsulation.
        !            30: .SH DIAGNOSTICS
        !            31: .BR "pcl%d: can't init" .
        !            32: Insufficient UNIBUS resources existed to initialize the device.
        !            33: This is likely to occur when the device is run on a buffered
        !            34: data path on an 11/750 and other network interfaces are also
        !            35: configured to use buffered data paths, or when it is configured
        !            36: to use buffered data paths on an 11/730 (which has none).
        !            37: .PP
        !            38: .BR "pcl%d: can't handle af%d" .
        !            39: The interface was handed a message with addresses formatted in an
        !            40: unsuitable address family;  the packet was dropped.
        !            41: .PP
        !            42: .BR "pcl%d: stray xmit interrupt" .
        !            43: An interrupt occurred when no output had previously been started.
        !            44: .PP
        !            45: .BR "pcl%d: master" .
        !            46: The TDM bus had no station providing ``bus master'' timing signals,
        !            47: so this interface has assumed the ``master'' role.  This message should
        !            48: only appear at most once per UNIBUS INIT on a single system.
        !            49: Unless there is a hardware failure, only one station may be master at at time.
        !            50: .PP
        !            51: .BR "pcl%d: send error, tcr=%b, tsr=%b" .
        !            52: The device indicated a problem sending data on output.
        !            53: If a ``receiver offline'' error is detected, it is not normally logged
        !            54: unless the option PCL_TESTING has been selected, as this causes a lot
        !            55: of console chatter when sending to a down machine.  However, this option
        !            56: is quite useful when debugging problems with the PCL interfaces.
        !            57: .PP
        !            58: .BR "pcl%d: rcv error, rcr=%b rsr=%b" .
        !            59: The device indicated a problem receiving data on input.
        !            60: .PP
        !            61: .BR "pcl%d: bad len=%d" .
        !            62: An input operation resulted in a data transfer of less than
        !            63: 0 or more than 1008 bytes of
        !            64: data into memory (according to the word count register).
        !            65: This should never happen as the maximum size of a PCL message
        !            66: has been agreed upon to be 1008 bytes (same as ArpaNet message).
        !            67: .SH "SEE ALSO"
        !            68: intro(4N), inet(4F)

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