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TN210-7.DOC
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1992-06-29
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TN210-7.DOC
USER COMMAND LIST
*********************
TNPlus version 2.10 has the following commands available to the user:
(Commands may be abbreviated as indicated.)
BYE (B) - Use this command when you want the disconnect to be initiated
from the far end of the circuit.
CONNECT (C) - This is the general command to connect to and from the node.
Examples are: "C PDT" to connect to a node, "C KB5CDX" to connect from the
node to a local station. Connecting through a digipeating path is disallowed.
CQ - When the node receives a CQ command, it transmits once: CQ plus any
user text up to a maximum length of 77 characters, including spaces. The node
is also conditioned by this action to display the CQing station in its USERS
response for a period of time set by Parameter 24 (usually 15 minutes), unless
the CQing station issues another command before the time runs out. Should
another station perform a USERS command during this time, he could see
something like this:
DMN:WD5EZC-2> TheNet Plus 2.10st (673)
Circuit(CLOUD:WD5EZC-1 W2RRY) <..> CQ(W2RRY-15)
Anyone observing the CQ can connect to the node and then connect to
W2RRY-15 to initiate a QSO. If the CQing station doesn't get a reply after a
few minutes, he can reinitiate the CQ command from time to time in hopes of
attracting someone on the local frequency. Remember, each time the CQ command
plus text is given, it will be broadcast unproto by the node for just that one
time. If one wants to attract the attention of a monitoring station, the CQ
procedure can be used to pass a unproto message off a specific node. For
instance: "CQ will someone telephone Pat, KR5S to turn on his TNC?" The
request can be repeated every minute or so until the sender is either connected
to, or decides no one is monitoring the local node.
HEARD (H) - The "H" command will display level 2 (normal) users heard by
the node during the past 15 minute period. Netnodes and level 3 users will not
normally be seen once the node has "initialized" itself (a 30 - 60 minute
period after startup). The maximum number of users allocated for the Heard
table is 20. Stations listed in the heard table are not ranked in order of
time, i.e., the first station listed may not be either the most recent or the
oldest station heard. If stations have not been heard during the past 15
minutes, a "No One" response is given.
The Heard function compares the new call with the call signs listed in the
node alias table. If a match isn't made, the new call will show on the Heard
list. Thus there may be brief periods when the call sign of either a new node
or a propagated node may appear on the Heard list. When a match is made of the
alias, the node call sign will no longer be listed. This is also true of node
aliases, which may temporarily show. Additionally, the list may include
Ka-node and non-node aliases, if heard.
Callsigns of downlinking stations from local nodes also will be shown. If
a user notes an SSID of -14 or -15 associated with the callsign, the odds
are these calls will be unconnectable since the originating station is
separated by one or more nodes. They are picked up in the local node's Heard
list when converting to a "Downlink" status in the process of connecting to a
local station.
INFO (I) - Is SYSOP programmable and has a capacity of up to 160
characters including control characters and spaces. The purpose of the INFO
section is to provide local information and/or news of interest to users.
Distant users find it very convenient to know the location of the node and it's
frequency. Such data is useful for those exploring and mapping the packet
network.
The INFO section is also a good place to identify a local 24-hour maildrop
or BBS. Or, one can place routing information, such as the path to a local
DXCluster or gateway. In some areas, network management policies dictate the
format and content of node INFO messages.
The procedure for writing to INFO is further explained in the SYSOP COMMAND
LIST.
NODES (N) - This command calls down a listing of the nodes contained in the
destination table. It gives a user a listing of possible destination nodes to
connect to. It's good practice to use this command sparingly. Owing to the
condition of our congested networks, a NODES dump may cause all users on the
circuit to be disconnected due to the large barrage of packets this command
normally yields. Since VHF networks are relatively stable, chances are, the
contents of a local node table are not apt to change much from hour to hour.
Thus, local users should be encouraged to NOT command a NODES dump every few
minutes. For the same reason, it's a poor practice to request NODES, from
distant network connects due to the real possibility of disconnecting all users
along a multiple node connection.
Variations on the N command are: "N *" and "N <alias or callsign>". The
"N *" command ADDITIONALLY yields a NODES dump of the # (hidden) nodes. The
hidden nodes are those normally associated with backbone trunking. A very
useful command is that of "N <alias or callsign>." This allows a user to
find the path quality and identification of the nearest node leading to the
destination node requested in the command. An example:
A user is at the NDGAF node and wishes to know the route to NDPMB. He
issues a "N NDPMB" command and receives this response:
NDGAF:WA0RLE-1> Routes to: NDPMB:WC0M-8
192 5 0 NDPMB
146 5 0 NDPET
This tells him there is a DIRECT radio path (the 192 and 0) and that the
path is fairly recent (as shown by the "5"). He can assume a high probability
of success should he attempt the connect to NDPMB. He also notes there is a
secondary route to NDPMB via NDPET. The numbers given in the N <alias or call>
command will be explained in more detail later. Here we just want to show
how the N <alias or call> command is a powerful tool, useful in helping one
navigate throughout the network.