Specifications

System Configuration Files

246 025-9035AA

dd dd Unknown destination handling for this port. This tells the

port what to do with a packet whose destination ID has not

been programmed into the card. (i.e. - packets we do not

know how to route using entries in the node table). The

useful values are:

0000h Reject all unknown addresses, sending a <CAN>

(cancel) to the connected node. Zetron terminals

will log the sending or receiving of a <CAN>.

8000h Accept unknown addresses, sending an <ACK> to

the other node. The packet will then discarded, as

there is no routing information.

8001h Accept unknown addresses, sending an <ACK> to

through the other node. The low nine bits are used to

81FFh determine which ports to route such packets to, and

are meaningful only if the high bit is set on. The

routing bits are identical in meaning as those in the

node table port route mapping.

CRC mode used by this port.

00 Full binary CRC (default)

01 ASCII-Hex CRC (8c0 & later; also known

as transparent CRC mode)

count 0B

06 Set port timing parameters. Allows the adjustment of TNPP

timing parameters away from the default TNPP

specifications. Normally not used, may be useful with

packet modems or dial-up. If used, all the timing parameters

for a port must be specified.

Table 41 lists, in order as they are entered on a line in

oparam.cds, the timing parameters. The various “T_xxxx”

and “C_xxxx” labels are the names as use in the TNPP

specification document, which gives a longer description of

these parameters.

07 Set port batching parameters. Reserved, currently this

parameter should not be used.