Duplex Lan Configuration; Functional Overview; Operable Network Configuration - NEC N8800-162F User Manual

DUPLEX LAN CONFIGURATION

NEC Express5800/ft series uses Bonding for duplex of 1000 BASE LAN cards controlled by the igb
driver and builds them as bond*(*=0,1,2...) device.

Functional overview

For duplicating a LAN, the following load balancing mode for bonding is used. The default setting
of bonding is active-backup(mode=1).
Bonding mode
balance-rr
(*)
active-backup
Balance-xor
(*)
Balance-tlb
* When you use the bonding mode of 0 or 2, you need to use 802.3 mode in the setting of switch. Unless you
don't do this setting, you may come across a failure of module or disconnection of network in changing
machine. Confirm that there is a mode of 802.3 on the switch in advance.

Operable 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 and network interface name
PCI slot
On Board
PCI-e slot 1
PCI-e slot 2
PCI-e slot 3
PCI-e slot 4
*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.
mode
A load balancing is based on sequential turn on
0
available interface.
There is an interface of multiple LAN controllers in
this mode. This mode can continue an operation by
1
changing into the backup controller even if the LAN
controller of primary fails.
A load balancing is based on transmission hash policy
2
used MAC address of transmission source and
destination.
A load balancing is based on the transmission speed
5
of each interface on transmission.
This mode doesn't need the special support of switch.
Port CPU/IO module 0
#1 eth100600 (1)
#2 eth100601 (2)
#1 eth100100 (3)
#2 eth100101 (4)
#1 eth100200 (5)
#2 eth100201 (6)
#1 eth100300 (7)
#2 eth100301 (8)
#1 eth100400 (9)
#2 eth100401 (10)
Linux Setup and Operation 3-9
Function
CPU/IO module 1
eth110600 (1)
eth110601 (2)
eth110100 (3)
eth110101 (4)
eth110200 (5)
eth110201 (6)
eth110300 (7)
eth110301 (8)
eth110400 (9)
eth110401 (10)