The Packet Radio
“
2 N 1
”
Handbook
by
Buck Rogers
K4ABT
Section 1
;
Packet Radio “The Basics
”
Section 2
;
The X1J4 System Node Operator’s (SNO) Handbook
ILLUSTRATION SECTION Charts & Node Drawings
TheNET
X1J4 System Node Operators Handbook
__ Page 48
The purpose for "Locking" the qualities of your real neighbor nodes, is to preserve their quality rating as true neighbors. If
one of your true neighbors goes down, it will be removed from the node table, however it will not be removed from the
“locked routes listing” unless you remove it.
To delete a locked route listing use the minus (-) sign where you used the plus sign (+) in the routes listing; Here is an
example of how I would remove the locked routes we entered earlier (quotation marks are mine):
R 0 K4ABT-8 “-” 192
It is viatlly important to the proper operation of the network that each SNO who locks in a route to a neighbor node not his
own, to notify the neighbor node SNO that he has down so. Ask the neighbor node SNO to lock his node in using the same
locked route quality as you have used. This insures good link quality and fewer retries between nodes. In many cases, it
prevents the familiar;
“RETRIED OUT AT NODE .....”
SUMMARY; SETTING
NODE
ROUTES:
The Node command may be used to make a manual entry in the node table. When this is done, it may also make an entry
in the routes table if necessary. The syntax of the command is :
NODE, Callsign, +, Ident, Quality, Count, Port, Neighbor
•
callsign is the callsign of the destination node
•
ident is the alias of the destination node
•
Quality is the node quality for the entry
•
Count is the obsolescence count to be given to the entry
•
Port is the level 2 port ( 0 for radio, 1 for RS232 )
•
Neighbour is the callsign of the neighbouring node to route through
So to make an entry that will never expire to ANODE:K4ABT-7 where the node is accessed directly on the radio port with a
quality of 192, enter
NODE K4ABT-7 + ANODE 192 0 0 K4ABT-7
If the same station is not heard directly but is accessed through node WB4EDZ-7 over the radio, and the entry will expire
when its obsolescence drops to zero from an initial count of 8, enter :
NODE K4ABT-7 + ANODE 192 8 0 WB4EDZ-7
An entry may be deleted by substituting - (minus) for + (plus).
IMPORTANT NOTE:
LOCK 1200 baud neighbor (radio (zero 0) port) nodes to each other at a value of 192
LOCK 9600 baud neighbor (radio (zero 0) port) nodes to each other at a value of 240
