| statements: | LINE |
| dependencies: | LNCTL=MPC |
| range: | X'000'–X'FFFF' |
Specifies the hexadecimal channel_unit_address used to read data from the adjacent host. You must code at least one READ channel_unit_address. If you code an address that is not defined to the system, the activation will fail for the entire group.
Channel_unit_address can be defined as a single address, as a range of addresses, or both. A range is indicated by a hyphen. VTAM® generates addresses for the range. For example, READ=(132, 128-130, 13A) will define the addresses 132, 128, 129, 12A, 12B, 12C, 12D, 12E, 12F, 130, and 13A.
For each address on the READ operand, you must code the corresponding address on the WRITE operand in the adjacent host to provide a complete path.
Do not code the same channel_unit_address for the READ operand and the WRITE operand in the same host.
All READ and WRITE channels that you
configure must have similar physical characteristics. If some channels
take different physical paths with longer distances, this might result
in data arriving out of order on the partner host. The out of order
conditions add extra processing on the receiving side to reorder the
inbound data. The reordering might result in performance degradation.