Link Status Messages - Advanced Electronic Applications PK-88 Operating Manual

PK-88 OPERATING MANUAL
3.4.3

Link Status Messages

Link status messages show the status of packet AX.25 connections in which the PK-88 is
involved. You can ask for link status at any time from the Command Mode by typing the
CONNECT command without parameters.
If you type a CONNECT command while the PK-88 is in connected state, your monitor will
display the link status.
The following messages appear in response to the CONNECT command.
Link state is: CONNECTED to call1
Your station is connected to a distant station. The message shows the digipeater path in
use, if any.
Link state is: DISCONNECTED
There is no link or connection at this time.
Link state is: CONNECT in progress
You typed a connect request, but the acknowledgment from the distant station has not
been received. If you type the DISCONNE command, the connect process will be can-
celed.
Link state is: DISCONNECT in progress
You typed a disconnect request, but the acknowledgment from the distant station has not
been received. If you type the
mediately.
Link state is: FRMR in progress
The PK-88 is connected to a distant station but a protocol error has occurred. This should
never happen when AEA AX.25 systems are connected. An improper implementation of
the AX.25 protocol could cause this condition. The PK-88 will try to resynchronize frame
numbers with the distant TNC, although a disconnect may result. Connections are invalid
in this state.
The PK-88 tells you whenever the link status changes. Link status may change in re-
sponse to a command given the PK-88 (CONNECT or DISCONNE), a connect or disconnect
request packet from a distant station, a disconnect resulting from exceeding the retry-
count, an automatic timeout disconnect (CHECK), or a protocol error.
*** CONNECTED to: call1 [VIA call2[,call3 .... call9]]
This message appears when the PK-88 changes from the 'disconnected' or 'connect in
progress' state to the connected state. The connection may be a result of a CONNECT-
command typed by you, or a connect request packet received from a distant station.
[VIA call2[,call3 .... call9]]
DISCONNE command again the PK-88 is disconnected im-
3 - 8
BASIC OPERATION
PK-88 - 44