NETROMD(8)						   Linux System Managers Manual 						NETROMD(8)

NAME

       netromd - Send and receive NET/ROM routing messages

SYNOPSIS

       netromd [-c] [-d] [-i] [-l] [-p pause] [-q quality] [-t interval] [-v]

DESCRIPTION

       For  a  NET/ROM	based network to operate correctly, a periodic broadcast of routing information needs to occur. Typically this occurs once
       every hour on every port which is expected to carry NET/ROM traffic. The purpose of netromd is to send and receive NET/ROM  routing  broad-
       casts.  To operate correctly a set of parameters that corresponds to each AX.25 port needs to be passed to the program. This information is
       encoded in a configuration file, by default which is /etc/ax25/nrbroadcast with each line representing one port, see the  manual  page  for
       nrbroadcast(5).

       To  cut	down  the  length  of  these routing broadcasts, only the information about the highest quality neighbour for a particular node is
       transmitted.  The transmission is also limited to those node that have a certain minimum value in their obsolesence count,  this  value	is
       decremented every time a routing broadcast is transmitted, and is refreshed by receiving a routing broadcast which contains that particular
       node.

       The value of the default quality is traditionally assigned a value that represents the quality of the radio links on that  port.  A  higher
       number  representing  better radio links with 255 (the maximum) reserved for wire connections. The practise in the UK is to set the default
       quality to a low value, typically 10, and manually set up the trusted neighbouring nodes in the neighbour list manually. The worst  quality
       for auto-updates value is a way to filter out low quality (ie distant) nodes.

       The verbose flag may be either 0 or 1, representing no and yes. By specifying no, the program will only generate a routing message contain-
       ing information about the node on which it is running, by specifying the yes option, all the information in the nodes routing  tables  will
       be transmitted.	The quality advertised for the other node callsigns on this machine may be set using the -q option.

       Between	each transmission netromd pauses for five seconds (default) in order to avoid flooding the channels that it must broadcast on. The
       value of this delay is settable with the -p option.

OPTIONS

       -c	       Forces strict compliance to Software 2000 specifications. At present this only determines how  node  mnemonics  with  lower
		       case  characters  will  be  handled.   With compliance enabled mixed case node mnemonics will be ignored. The default is to
		       accept node mnemonics of mixed case.

       -d	       Switches on debugging messages, the default is off. Logging must be enabled for them to be output.

       -i	       Transmit a routing broadcast immediately, the default is to wait for the time interval to elapse  before  transmitting  the
		       first routing broadcast.

       -l	       Enables logging of errors and debug messages to the system log. The default is off.

       -p pause        Sets the delay between transmissions of individual routing broadcast packets. The default is five seconds.

       -q quality      Sets the quality of the subsidiary nodes relative to the main node. The default is 255.

       -t interval     The time interval between routing broadcasts, in minutes. The default is 60 minutes.

       -v	       Display the version.

FILES

       /proc/net/nr_neigh
       /proc/net/nr_nodes
       /etc/ax25/axports
       /etc/ax25/nrbroadcast

SEE ALSO

       ax25(4), axports(5), nrbroadcast(5), netrom(4), nrparms(8).

AUTHOR

       Jonathan Naylor G4KLX <g4klx@g4klx.demon.co.uk>

Linux								  20 August 1996							NETROMD(8)