What’s in this Version

The following information is for the IEther-00 (iether) gigabit Ethernet driver for HP-UX 11i v1 and v2 of May 2005. The iether driver supports gigabit Ethernet cards such as:

AB290A PCI-X 2-Port U320 SCSI and 2-Port Gigabit Ethernet Combination Card. This product began shipping in April 2005.
AB545A PCI-X 4-Port Gigabit Ethernet Card. This product began shipping in March 2005.
A7012A PCI-X 2-Port GigE Base-T.
A7011A PCI-X 2-Port GigE Base-SX.
AB352-60001 core PCI-X 2-Port GigE Base-T for the rx4640 server.

You can check to see if this driver is present on your system by running the commands described in ““How to Verify that the Correct Driver is in the Kernel”” in this document.

The gigabit Ethernet cards listed in the first part of this section are supported on the May 2005 release of HP-UX 11i v1 or v2 on:

Most HP-UX HP 9000 (PA-RISC-based) servers.
HP Integrity (Itanium®/Itanium®2-based) servers and workstations.

The HP-UX 11i v2 release of May 2005 is not for PA-RISC-based workstations.

For the most up-to-date list of network cards and the systems that they work on, check the HP-UX Ethernet Driver Support Matrix, Edition 2 on http://docs.hp.com under “Networking and Communications,” or ask your sales representative.

The HP-UX 11i v1 and v2 release of May 2005 provides the following new iether gigabit Ethernet driver features:

Ability to turn on or off the receive and send sides of the card’s Checksum Offload (CKO). See details in the following section of this document.

Support of 1000FD mode of switches (Table 1-1 “HP-UX 1000Base-T Supported Configurations”, row 2). Gigabit Ethernet cards in autonegotiation mode will now support 1000FD manual/fixed mode on the link partner (such as a switch). All supported configurations are shown in (Table 1-1 “HP-UX 1000Base-T Supported Configurations”) including those where the gigabit Ethernet card and the link partner also have the same settings.

Set the ports on the card and on your switch according to the following table.The newest supported configuration is shown in the second row.

Table 1-1 HP-UX 1000Base-T Supported Configurations

HP-UX 1000Base-T Port	Link Partner	Resulting Speed
AUTO	AUTO	Highest Common Speed (HP-UX supports 10/100/1000)
AUTO	1000 FD^[1] fixed/manual	1000 Mbit/s FD
100 HD	100 HD	100 Mbit/s HD
100 FD	100 FD	100 Mbit/s FD
10 HD	10 HD (for example, a 10Base-T Hub)	10 Mbit/s HD
10 FD	10 FD	10 Mbit/s FD
^[1]Configuration supported as of May 2005.

Checksum Offload Changes for the iether Gigabit Ethernet Driver

Beginning with the HP-UX 11i v1 and v2 OE release of May 2005, the iether gigabit Ethernet networking driver allows you to turn the CKO feature of the gigabit Ethernet interface ON or OFF. With this and subsequent versions of the iether driver:

The default for receive side CKO is OFF (disabled). Prior to the May 2005 release, the receive side CKO was ON (enabled). This setting can be restored as explained in the examples that follow.
The default for the send side is CKO ON (enabled) -- the same setting as on prior releases.

Example settings for iether driver:

Recommended: To set the CKO options permanently (so they’re saved across reboots), edit the following values in the /etc/rc.config.d/hpietherconf file:

HP_IETHER_SEND_CKO and
HP_IETHER_RECV_CKO and set them to ON or OFF

To determine the current CKO settings, enter the following command:

lanadmin -x cko ppa

Optional: If desired, you can also use the lanadmin -X command to temporarily set these values; but if you use the lanadmin command, your settings will not be saved across a reboot. The exact lanadmin commands are as follows (note that the -X is capitalized in these commands):

lanadmin -X send_cko_on ppa lanadmin -X recv_cko_on ppa

Please refer to the lanadmin man page for details of these CKO options.

What’s in this Version

Technical documentation

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Checksum Offload Changes for the iether Gigabit Ethernet Driver