Physical network ID configuration issues
The TCP/IP stack must be able to determine which physical network is connected to a
particular IBM® 10 GbE RoCE Express®
or internal shared memory (ISM) 
interface, so that
the 10 GbE RoCE Express
or ISM interface can be associated with the SMC capable interfaces that connect to that same physical
network.
- For Shared Memory Communications over Remote Direct Memory Access (SMC-R), SMC capable
interfaces include IPAQENET and IPAQENET6 interfaces.
- For Shared Memory Communications - Direct Memory Access (SMC-D), SMC capable interfaces include IPAQENET, IPAQENET6, IPAQIDIO, and IPAQIDIO6 interfaces.
| Device type | PNetID 1 | PNetID 2 | PNetID 3 | PNetID 4 |
|---|---|---|---|---|
| HiperSockets™ device | Represents the device | Not used | Not used | Not used |
| ISM device | Represents the device | Not used | Not used | Not used |
| OSD adapter | Represents port 0 |
Represents port 1 |
Not used | Not used |
| RoCE Express |
Represents port 1 |
Represents port 2 |
Not used |
Not used |
| RoCE Express2 |
Represents the device |
Not used |
Not used |
Not used |
SMC-R physical network ID configuration
issues
- If the Netstat DEvlinks/-d report for your OSD interface indicates SMCR: DISABLED (NO PNETID), ensure that you configured the PNetID value on the correct OSD port in the HCD definitions.
- If you receive message EZD2028I with reason PNETID IS NOT CONFIGURED during 10 GbE RoCE Express interface activation, ensure that you configured the PNetID value on the correct 10 GbE RoCE Express port in the HCD definitions.
- If the Netstat DEvlinks/-d report for your OSD interface indicates SMCR: Yes and your 10 GbE RoCE Express interfaces initialized successfully, verify that the PNetID value of the OSD interface matches that of the intended 10 GbE RoCE Express interfaces.
For more information about configuring PNetIDs, see Physical network considerations in z/OS Communications Server: IP Configuration Guide.
SMC-D physical
network ID configuration issues
Use the Netstat DEvlinks/-d and D NET,TRL,TRLE=xxxx commands to verify the physical network ID (PNetID) value on the OSD or HiperSockets interfaces and the ISM interfaces.
- If the Netstat DEvlinks/-d report for your OSD or HiperSockets interface indicates SMCD: DISABLED (NO PNETID), ensure that you configured the PNetID value on the correct OSD port or HiperSockets CHPID in the HCD definitions.
- During ISM interface activation, if you receive message EZD2028I with reason PNETID IS NOT CONFIGURED or message IST2422I, ensure that you configured the PNetID value on the correct ISM device in the HCD definitions.
- During ISM interface activation, if you receive message IST2423I, ensure that you have configured sufficient Peripheral Component Interconnect Express (PCIe) function ID (PFID) values for the PNetID value in the HCD definitions.
- If the Netstat DEvlinks/-d report for your OSD or HiperSockets interface indicates SMCD: Yes and your ISM interfaces initialized successfully, verify that the PNetID value of the OSD or HiperSockets interface matches the PNetID of the intended ISM interfaces.
For more information about configuring PNetIDs, see Physical network considerations in z/OS Communications Server: IP Configuration Guide.