170 lines
4.0 KiB
Groff
170 lines
4.0 KiB
Groff
.\"
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.\" ===================================
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.\" HARP | Host ATM Research Platform
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.\" ===================================
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.\"
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.\"
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.\" This Host ATM Research Platform ("HARP") file (the "Software") is
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.\" made available by Network Computing Services, Inc. ("NetworkCS")
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.\" "AS IS". NetworkCS does not provide maintenance, improvements or
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.\" support of any kind.
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.\"
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.\" NETWORKCS MAKES NO WARRANTIES OR REPRESENTATIONS, EXPRESS OR IMPLIED,
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.\" INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY
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.\" AND FITNESS FOR A PARTICULAR PURPOSE, AS TO ANY ELEMENT OF THE
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.\" SOFTWARE OR ANY SUPPORT PROVIDED IN CONNECTION WITH THIS SOFTWARE.
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.\" In no event shall NetworkCS be responsible for any damages, including
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.\" but not limited to consequential damages, arising from or relating to
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.\" any use of the Software or related support.
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.\"
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.\" Copyright 1994-1998 Network Computing Services, Inc.
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.\"
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.\" Copies of this Software may be made, however, the above copyright
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.\" notice must be reproduced on all copies.
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.\"
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.\" @(#) $FreeBSD$
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.\"
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.\"
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.Dd August 4, 1998
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.Dt ATMARPD 8
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.Os
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.Sh NAME
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.Nm atmarpd
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.Nd "ATMARP/SCSP interface daemon"
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.Sh SYNOPSIS
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.Nm
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.Op Fl d
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.Op Fl l Aq Ar log_file
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.Aq Ar net_intf
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.Ar ...
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.Sh DESCRIPTION
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.Nm Atmarpd
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provides an interface between the ATMARP server in the
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kernel and the SCSP daemon for the Host ATM Research Platform
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(HARP) networking software.
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.Nm Atmarpd
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reads the ATMARP cache from the kernel periodically
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and passes any updated entries to
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.Xr scspd 8
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so they will be
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propagated to remote servers.
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It also accepts updated entries that remote servers have sent to
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.Xr scspd 8
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and, if they are
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new or more up to date than current entries, installs them
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in the kernel's ATMARP cache.
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Both
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.Nm
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and
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.Xr scspd 8
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must be running before any ATMARP cache synchronization can take place.
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.Pp
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When
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.Nm
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starts, it parses its command line and puts
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itself into the background.
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.Pp
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The command-line options are:
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.Bl -tag -width "-l <log_file>"
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.It Fl l Aq Ar log_file
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Specifies that
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.Nm
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is to write log messages to the
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file named
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.Aq Ar log_file
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rather than to the system log.
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.It Fl d
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Specifies that
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.Nm
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is to be run in debug mode.
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In debug mode,
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.Nm
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is not put into the background.
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Log messages are written to standard output instead of to
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the log file.
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.It Aq Ar net_intf
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Specifies the network interface(s) for which the host is providing
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ATMARP service and whose caches are to be synchronized using SCSP.
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If multiple network interface names are specified,
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.Nm
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will provide an interface to
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.Xr scspd 8
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for the servers on all the
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specified interfaces.
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.El
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.Sh SIGNAL PROCESSING
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The following signals can be used to control
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.Nm :
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.Bl -tag -width indent
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.It Dv SIGINT
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Dump debugging information to a file.
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When it receives a
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.Dv SIGINT
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signal,
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.Nm
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dumps a summary of
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its control blocks to a text file (see
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.Sx FILES ) .
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.El
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.Sh FILES
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.Bl -tag -width indent
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.It Xo
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.Sm off
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.Pa /tmp/atmarpd.
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.Aq Ar pid
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.Pa \&.
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.Aq Ar seq
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.Pa .out
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.Sm on
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.Xc
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Debugging information dump file name.
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.Nm Atmarpd
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writes a summary of its control blocks to this file
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when it receives a
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.Dv SIGINT
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signal.
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.Aq Ar pid
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is the process ID of the daemon and
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.Aq Ar seq
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is a sequence
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number which is incremented every time a dump is taken.
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.El
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.Sh SEE ALSO
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.Xr atm 8 ,
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.Xr scspd 8
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.Rs
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.%T "Classical IP and ARP over ATM"
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.%O "RFC 1577"
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.Re
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.Rs
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.%T "Classical IP and ARP over ATM"
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.%O "RFC 2225"
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.Re
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.Rs
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.%T "Server Cache Synchronization Protocol (SCSP)"
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.%O "RFC 2334"
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.Re
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.Rs
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.%T "A Distributed ATMARP Service Using SCSP"
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.%O "draft\-ietf\-ion\-scsp\-atmarpd\-00.txt"
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.Re
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.Sh BUGS
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Results are unpredictable if multiple instantiations of
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.Nm
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are run simultaneously for a given network interface.
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.Pp
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Please report any bugs to
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.Aq harp\-bugs@magic.net .
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.Sh COPYRIGHT
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Copyright (c) 1994-1998, Network Computing Services, Inc.
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.Sh AUTHORS
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.An John Cavanaugh ,
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Network Computing Services, Inc.
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.An Mike Spengler ,
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Network Computing Services, Inc.
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.An Joe Thomas ,
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Network Computing Services, Inc.
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.Sh ACKNOWLEDGMENTS
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This software was developed with the support of the Defense
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Advanced Research Projects Agency (DARPA).
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