Operations Manual

OPERATIONS 4-6
O&M of the MCC-545B PACKET DATA RADIO
12/2000
where "pname" is the network parameter, and "value" is a limit dependent on "pname". The
"pname" parameters are as follows:
TTL – time-to-live in minutes (default 120 minutes); i.e., the time limit for a message to
reach its destination before it is deleted from the queue.
The time-to-live parameter input is truncated to a 10-minute boundary for
utilization by the 545B (e.g., if you enter 66 or 64, the TTL for the next message
starts at 60). A resultant value of 0 (parameter range 0 – 9) means never time out.
TTR – time-to-retransmit in minutes (default 20 minutes); i.e., the message is
retransmitted if it has not reached its destinations in this time frame.
NUP – neighbor-up threshold (default 20 acquisitions); the number of times a Station
must hear from another Station in one minute before it becomes a neighbor.
NDOWN – neighbor-down threshold in minutes (default 20 minutes); if there is no
communication with a neighbor Station within the set time, the route to that
neighbor is ignored. Setting NDOWN to 0 keeps a neighbor defined indefinitely.
RDOWN – Remote-down threshold in minutes (default 1,440 minutes); if there is no
communication with a Remote Station within set time, the Remote is declared
down and is removed from the Remote table. Setting RDOWN to 0 keeps a
Remote defined indefinitely. (MASTER OPERATION ONLY)
OTL – outstanding text limit (default 20 texts); the number of messages a Station is
allowed to send to another Station without an end-to-end acknowledgment.
CONNP – connectivity message precedence (default 1 precedence); information on changes
in the connectivity table is given highest precedence (automatic feature).
(MASTER OPERATION ONLY)
ETEAP – end-to-end ACK message precedence (default 0 [zero] precedence); the
acknowledgment of a message when it reaches its final destination is given
highest precedence.
HTO – history file timeout in minutes (default 10 minutes); maintains information for
duplicate filtering.
TEXTL – text size in segments (default 32 segments). (MASTER OPERATION ONLY)
FLOODP – partial "flooding" precedence level (default A precedence). Messages of this
precedence level and above are transmitted over all routes of minimum length;
messages below this precedence are not sent over all minimum length routes, but