DLC device driver management
A DLC must be added to the system prior to use.
Each installed DLC is automatically added after installation and at each system restart (see GDLC data link controls). If a DLC has been removed without a subsequent restart, it can be re-added.
| Task | SMIT fast path | Command or file |
|---|---|---|
| Add an Installed DLC | Choose one (by device driver name): smit cmddlc_sdlc smit cmddlc_token smit cmddlc_qllc smit cmddlc_ether1 smit cmddlc_fddi then select Add | mkdev2 |
| Change DLC Attributes3,4 | Choose one (by device driver name): smit cmddlc_sdlc_ls smit cmddlc_token_ls smit cmddlc_qllc_ls smit cmddlc_ether_ls1 smit cmddlc_fddi_ls | chdev2 |
| Start DLC Local Area Network Monitor Trace5 | smit trace | trace -j nnn where the value nnn is the hook ID to be traced |
| Stop DLC Local Area Network Monitor Trace | smit trcstop | trcstop2 |
| Generate DLC Local Area Network Monitor Trace Report | smit trcrpt | trcrpt -d nnn where the value nnn is the hook ID to be reported |
| List Current DLC Information3 | Choose one (by device driver name): smit cmddlc_sdlc_ls smit cmddlc_token_ls smit cmddlc_qllc_ls smit cmddlc_ether_ls1 smit cmddlc_fddi_ls | lsdev2 or lsattr2 |
| Remove a DLC3,6 | Choose one (by device driver name): smit cmddlc_sdlc_rm smit cmddlc_token_rm smit cmddlc_qllc_rm smit cmddlc_ether_rm1 smit cmddlc_fddi_rm | rmdev2 |
Note:
- The SMIT fast path for an Ethernet device manager includes both Standard Ethernet and IEEE 802.3 Ethernet device managers.
- Details about command line options are provided in the command descriptions for the mkdev, chdev, trace, trcstop, trcrpt, lsdev, lsattr, and rmdev commands.
- A DLC must be installed and added before you can list, show, change, or remove its attributes (see GDLC data link controls). An attribute change is only successful if there are no active opens against the target DLC. Before issuing the change action, the user might have to stop services such as SNA, OSI, or NetBIOS from using the DLC.
- Changing the receive-queue size directly affects system resources. Make this change only if the DLC is having receive-queue problems, such as sluggish performance or overflows between the DLC and its device handler.
- Exercise caution when enabling the monitor trace since it directly affects the performance of the DLCs and their associates.
- Removing a DLC is only successful if there are no active opens against the target DLC. Before issuing the remove action, the user may have to stop services such as SNA, OSI, or NetBIOS from using the DLC.