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Hardware and Software Installation Procedure
Optional Step: Configure Jumbo Frames Size (Jumbo frames are supported only at 1000 Mbit/s)
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• Installation is complete when you have successfully run linkloop, ping and netstat. To configure
remote systems, see the Ethernet Support Guide available on the web at http://docs.hp.com. Do this step
only if remote systems have not been previously configured.
• Optionally, if you want to verify that the igelan driver appears for each installed card, enter: ioscan
-fknClan
The ioscan output for each port would look something like the following:
Class I H/W Path Driver S/W State H/W Type Description
lan 6 1/0/2/1/0/6/0 igelan CLAIMED INTERFACE HP AB465-60001 PCI/PCI-X 2-port 2Gb
FC/2-port 1000B-T Combo Adapter
The last two digits of the hardware path (third column) reflect the path of each port -- in the sample
output shown, the “0” indicates LAN A (as shown in Figure 1 on page 11). Both ports need to show as
CLAIMED here.
Optional Step: Configure Jumbo Frames Size (Jumbo frames are supported only at 1000 Mbit/s)
• Jumbo frames for the igelan driver on HP-UX 11i v 1.0 have an mtu_size of 9000 bytes. On HP-UX 11i v 2.0
of September 2004, jumbo frames using the igelan driver can have an MTU in the range of 1501 to 9000
bytes.
If you are using Jumbo Ethernet frames, ensure that:
— all end stations on a given LAN
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have the same maximum transmission unit (MTU) setting;
— intermediate stations such as switch ports in your LAN have an MTU equal to or greater than the end
station’s MTU.
• Obtain the PPA number of the card by entering lanscan.
• Choose one of two configuration methods that will permanently save your configuration.
— use the GUI-based system admin manager (SAM).
To use SAM, type sam at the HP-UX system prompt; then double-click Networking and
Communications, and then Advanced Configuration--see Ethernet Support Guide for details, and then
do the steps for verifying the MTU size;
or
edit the following configuration file using an editor such as “vi”:
/etc/rc.config.d/hpigelanconf.
Set the mtusize by editing:
HP_IGELAN_MTU[i]=
mtusize
, and insert the proper interface name:
HP_IGELAN_MTU[i]=HP_IGELAN_INTERFACE_NAME. When the system reboots, the interface
will be configured for jumbo frame operation.
• Verify MTU change by entering netstat -rn. If MTU has not changed, enter the following commands:
$ifconfig lan
PPA_number
unplumb
$ifconfig lan
PPA_number ip_address
netmask
netmask
up
• To check (or verify) the current Ethernet frame size, enter:
$lanadmin -m
PPA_number
1. In the Jumbo Frames discussion, “LAN” means that the end stations do not have any routers or
layer 3 switches in between them.