Ethernet Support Guide for HP-UX 11i v3

3 Setting and displaying driver Ethernet parameters
This chapter explains how to set Ethernet parameter values for drivers and how to display the
current values.
3.1 Tools for configuring Ethernet parameters
On HP-UX 11i v3, you can configure the cards using any of the following tools:
• The ncweb graphical user interface for configuring the networking portion of the System
Management Homepage (SMH). On HP-UX 11i v3, SMH replaces the SAM tool. For further
details on using SMH, see the HP-UX System Administrator’s Guide: Configuration Management
available at the following location:
www.hp.com/go/hpux-systemadmin-docs
For more information about ncweb, see the ncweb(1m) manpage.
• nwmgr, a command to enter on the HP-UX command-line to administer all HP-UX LAN
parameters.
For information, enter man nwmgr at the HP-UX command prompt. You can modify LAN
parameters and obtain information about features supported by a specific driver by referring
to the nwmgr_driver(1m) manpage, where driver is the name of the driver (for example,
nwmgr_iexgbe(1m)).
To see the list of drivers (subsystems) supported by nwmgr on your HP-UX system, enter:
nwmgr -h -S all
You can use the nwmgr command on LAN interfaces to:
◦ Display information of an interface
◦ Modify settings of an interface
◦ Reset the interface or its statistics
◦ Diagnose link connectivity
◦ Create and set configuration information for a component simultaneously
◦ Delete or erase components
3.2 Driver Ethernet parameters, configuration files, and startup scripts
Ethernet parameters
Each driver interface has several attributes or parameters. Some are configurable while others are
read-only. In general, each parameter can have a value in the running system (the parameter's
current value), another value in the driver's configuration file that stores data across boots and
DLKM loads (the parameter's saved or persistent configuration value), and an HP-supplied value
(the parameter's default value) that is applied by the driver after boot before the saved value is
applied.
Setting Ethernet parameters on the running system (using nwmgr command)
When using the nwmgr command, you must set the parameter specific to a port or function,
specifying the lanppa option, where ppa is the port or function number. For example, to set the
speed and duplexity for port 2 to 100 Mbit/s half-duplex, use this command:
# nwmgr -s -A speed=100HD -c lan2
3.1 Tools for configuring Ethernet parameters 21