Step 7: Set Dual Lan Configuration - NEC Express5800/320Fd-LR User Manual

Step 7: Set Dual LAN Configuration

NEC Express5800/ft series uses Bonding for duplex of 1000 BASE LAN cards controlled by the
e1000 driver and builds them as bond*(*=0,1,2...) device.
Overview
For duplicating a LAN, active backup for bonding is used. Active backup is a coupled-interface
using multiple LAN controllers. When only active LAN controller fails, this function allows for
continued operation by immediately switching to a backup controller.
Network Configuration
For NEC Express5800/ft series, network interface names are based on the naming convention as
described in the table below. Network duplication is achieved by pairing network interfaces of PCI
slots in CPU/IO module 0 and network interfaces in the same PCI slots in CPU/IO module 1.
PCI slot
On Board
PCI-X slot 1
PCI-X slot 3
* Port enclosed with brackets can be used when NIC is mounted on two ports.
* The number enclosed with brackets in the CPU/IO module column is slot
numbers allocated by vndctl described later. The slot numbers are allocated
one-to-one to each interface pair.
Cautions on Network Configuration
Do not configure various network settings on either the CUI (Character User Interface) or the GUI
(Graphical User Interface) with the system-config-network command that comes with the OS.
There is a issue of the bonding interface network's configuration not updated properly; there is also
a known issue of /etc/hosts file being edited illegally.
If you implement configurations on IP address, subnet mask or default gateway on the bonding
interface, ensure to use the after-mentioned vndctl command. For other network configuration items,
manually configure them by referring to such an online manual page of the man command.
PCI slot and network interface name
Port CPU/IO module 0
#1 eth100200 (1)
#2 eth100201 (2)
#1 eth100600 (3)
(#2) eth100601 (4)
#1 eth100700 (5)
(#2) eth100701 (6)
Linux Setup 4-23
CPU/IO module 1
eth110200 (1)
eth110201 (2)
eth110600 (3)
eth110601 (4)
eth110700 (5)
eth110701 (6)