Specifies the transmission group (TG) that represents
the connection between this node and the destination APPN node. For
APPN, this operand is valid when PUTYPE=2.
By specifying a tg_number, you
indicate a preferred TG which might or might not be used depending
on how the partner nodes negotiate the number.
For APPN-capable nodes, the CPNAME and NETID operands
are required with the TGN operand. Note that you can specify the CPNAME
operand without the TGN operand and the transmission group number
will be negotiated. However, if a value for TGN is specified, then
a value for CPNAME and NETID must also be specified.
- TGN=tg_number
- Specifies a decimal number assigned to the transmission group.
For APPN, coding TGN=0 means that the PU does not support parallel
TGs.
- TGN=ANY
- For subarea, allows the adjacent node to accept whatever valid
transmission group number it receives on the XID. You can specify
TGN=ANY for only one end of the transmission group. For the other
end, specify a valid TGN number or let it default to 1. If you specify
TGN=ANY for both ends, an error occurs. For APPN, coding TGN=ANY,
or not coding TGN, allows the transmission group number to be negotiated.
For connections to LEN nodes, or to any node that does not support
parallel TGs, TGN=0 is always assumed.
Note: VTAM® does not
validate TGN when coded for subarea resources.