User manual

28
is enabled on the
switch.
IEEE 802.3ad
(Dynamic Link
Aggregation)
Dynamic Link Aggregation uses a complex
algorithm to aggregate adapters by speed
and duplex settings. It utilizes all slaves in
the active aggregator according to the
802.3ad specification. Dynamic Link
Aggregation mode provides load
balancing and fault tolerance but requires
a switch that supports IEEE 802.3ad with
LACP mode properly configured.
Supports 802.3ad
LACP
Balance-tlb
(Adaptive
Transmit Load
Balancing)
Balance-tlb uses channel bonding that
does not require any special switch. The
outgoing traffic is distributed according to
the current load on each Ethernet
interface (computed relative to the
speed). Incoming traffic is received by
the current Ethernet interface. If the
receiving Ethernet interface fails, the
other slave takes over the MAC address of
the failed receiving slave. Balance-tlb
mode provides load balancing and fault
tolerance.
General Switch
Balance-alb
(Adaptive Load
Balancing)
Balance-alb is similar to balance-tlb but
also attempts to redistribute incoming
(receive load balancing) for IPV4 traffic.
This setup does not require any special
switch support or configuration. The
receive load balancing is achieved by ARP
negotiation sent by the local system on
their way out and overwrites the source
hardware address with the unique
hardware address of one of the Ethernet
interfaces in the bond such that different
peers use different hardware address for
the server. Balance-rlb mode provides
load balancing and fault tolerance.
General Switch