To use the OSA-Express4S QDIO IPv6 checksum and segmentation offload, perform the appropriate tasks in Table 1.
| Task | Reference |
|---|---|
| Display whether checksum offload is enabled for an OSA-Express QDIO interface by issuing the Netstat DEvlinks/-d command. | Netstat DEvlinks/-d report in z/OS Communications Server: IP System Administrator's Commands |
| Display whether checksum offload is globally enabled for OSA-Express QDIO IPv4 or IPv6 interfaces by issuing the Netstat CONFIG/-f command. | Netstat CONFIG/-f report in z/OS Communications Server: IP System Administrator's Commands |
| Display whether segmentation offload is enabled for an OSA-Express QDIO interface by issuing the Netstat DEvlinks/-d command. | Netstat DEvlinks/-d report in z/OS Communications Server: IP System Administrator's Commands |
| Enable IPv6 segmentation offload by specifying the SEGMENTATIONOFFLOAD parameter on the IPCONFIG6 statement. | IPCONFIG6 statement in z/OS Communications Server: IP Configuration Reference |
| Enable IPv4 segmentation offload by specifying the SEGMENTATIONOFFLOAD parameter on the IPCONFIG statement. If the SEGMENTATIONOFFLOAD parameter is specified on the GLOBALCONFIG statement, move this setting to the IPCONFIG statement; this parameter on GLOBALCONFIG is deprecated. | See the following statements in z/OS Communications Server: IP Configuration Reference: |
| Display whether segmentation offload is globally enabled for OSA-Express QDIO IPv4 or IPv6 interfaces by issuing the Netstat CONFIG/-f command. | Netstat CONFIG/-f report in z/OS Communications Server: IP System Administrator's Commands |