Seagate TS-251-4G User Manual download pdf (Page 88)

88

sure static

trunking 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 switches

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. This mode provides load balancing and

fault tolerance.

General switches

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