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Line Type
Operating Mode
Disconnect
[S, L]
S - Switched
L - Leased and direct connect lines
[0 - 2]
o -
Protocol enveloping only
I - Protocol conversion only
2-Dynamic
Notes:
1. Dynamic allows the mode to be determined by the BIND that is sent from the
host. Protocol enveloping is used when an LU-LU session type 1 BIND is sent
from the host. Protocol conversion is used when an LU-LU session type 2
BIND is sent from the host.
2. If this port is used with a control terminal, specify 1 or 2.
3. Refer to IBM 3708 Network Conversion Unit Description for more information
about the 3708 modes of operation.
Normally when the end user logs off from a host application, the host program
transmits an UNBIND command to the 3708. This option and the UNBIND type
determine whether the device is disconnected. If the device is disconnected, the end
user must reconnect to the 3708 and logon. If the device is not disconnected, the
end user is returned to the 3708 Host Selection Menu (C3), if defined.
[0 - 3]
0- The device is unconditionally disconnected if an UNBIND is sent to the 3708
from the host.
I-The device is not disconnected at UNBIND.
2-The device is conditionally disconnected if the UNBIND sent to the 3708
from the host is other than X' 02' or X' 03 ' .
3-The device is conditionally disconnected if the UNBIND sent to the 3708
from the host is anything other than
X'
0
I' , X'
02 ' , or
X'
03' .
4- The device is conditionally disconnected if the UNBIND is sent to the 3708
from. the host is other than X' 02 ' , or X' 03 '; the downstream device is not
disconnected on a DACTLU command from the host.
5- The device is conditionally disconnected if the UNBIND sent to the 3708
from the host is anything other than
X'
0
I' , X'
02 " or
X'
03'; the downstream
device is not disconnected on a DACTLU command from the host.
Notes:
1. For applications that use UNBIND (02), such as NCCF, use disconnect options
2
or 3.
2. To prevent being disconnected from applications, such as TSO, which transmit a
DACTLU during manual logoff procedures, use disconnect option4 or option 5.
13-28
3708 Planning and Installation
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