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Step 7: Set Dual LAN Configuration
The NEC Express5800/320Fc system builds a dual LAN configuration by using "Intel(R) PRO/1000
MT Dual Port Network Connection" and extended PCI slot "Intel(R) PRO/1000 MT Server Adapter"
and "Stratus emb-EB 2-Port Gigabit Adapter" mounted as standard on the CPU/IO module.
Overview
The dual LAN configuration is of two types as described below:
Adapter Fault Tolerance (AFT)
Adapter Fault Tolerance (AFT) is a feature that places more than one LAN controller on the
same LAN (same segment), and automatically switches the process of the primary controller to
the backup controller when any trouble occurred on the primary.
Adaptive Load Balancing (ALB)
Adaptive Load Balancing (ALB) is a feature that connects more than one LAN controller to the
same hub and enhances the throughput by operating packet transmission from the server.
Receive Load Balancing (RLB) is enabled by default. When RLB is enabled, the receiving
throughput is enhanced.
The other modes, "Static Link Aggregation" and "IEEE 802.3ad Link Aggregation," do not
contribute to enhancement against a fault. When a fault occurs, the communication performed on
the controller with the fault is not taken over by the backup controller but lost.
Windows Setup 4-22
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