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9–Linux Configuration for Bonding Mode and Virtual LAN (VLAN)
Linux Bonding Mode
9-6
NE0154601-00  C
The bonding modes are described in 
.
Table 9-1. Bonding Modes 
Mode 
Number
Mode Name
Description
 0 
balance-rr
This mode uses a round-robin policy; it transmits 
packets in sequential order, from the first available 
slave through the last. This mode provides load bal-
ancing and fault tolerance.
 1
active-backup
In this mode, one slave interface is active at all 
times. If one interface fails, another interface takes 
over the MAC address and becomes the active 
interface. This mode provides only fault tolerance. 
This mode does not require special switch support.
balance-xor
In this mode, transmissions are balanced across the 
slave interfaces based on ((source MAC) XOR (dest 
MAC)) modulo slave count. The same slave is 
selected for each destination MAC. This mode pro-
vides load balancing and fault tolerance.
broadcast
This mode transmits everything on all slave inter-
faces. This mode provides fault tolerance.
4
 802.3a 
This mode provides standard IEEE 802.3ad 
dynamic link aggregation. It requires 802.3ad sup-
port in the switch, and driver support for retrieving 
the speed and duplex of each slave.
5
balance-tlb
This mode provides adaptive transmit load balanc-
ing. Incoming traffic is received only on the active 
slave. Outgoing traffic is distributed according to the 
current load on each slave. This mode does not 
require special switch support.
6
balance-alb 
This mode provides adaptive load balancing 
through ARP negotiation; both transmit load balanc-
ing (TLB) and receive load balancing are supported 
for IPv4. This mode does not require special switch 
support, but does require the ability to change the 
MAC address of a device while it is open.