Open Request
On an open request, transmission algorithm 1 verifies the value specified on the STREAMS parameter. If more than 7 streams are specified, transmission algorithm 1 issues return code 12 in register 15. If the STREAMS value is valid, the transmission algorithm validates the TAPARM values.
If the TAPARM value is not valid, the transmission algorithm issues return code 8. If valid, transmission algorithm 1 places the specified limits for each stream (or the default values) in the TAPARM character string and issues return code 0. Transmission algorithm 1 then uses this TAPARM value as it processes accept and select requests.
| Return Code | Results |
|---|---|
| 0 | The specified TAPARM value is valid. |
| 8 | The specified TAPARM value is not valid. |
| 12 | The specified STREAMS value is not valid. |
The default number of streams is 2 and the default TAPARM is TH=(,100),(101,).
The operational parameters for each networking link describes the
format of the TAPARM values for transmission algorithm 1. For more
information, see z/VM: RSCS Networking Operation and Use.