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After you set up a network connection between a host and ZFS Storage Appliance, the connection is set to half duplex. What are two possible causes of this problem?
A. Multiple IP addresses are linked to the host.
B. There are duplicate IP addresses on the same network.
C. There is a broken cable or NIC port.
D. The network switch is not set to auto-negotiation.
Correct Answer: AD
Explanation/Reference:
Explanation:
D: When a server boots, the network card will negotiate with the network switch how to communicate. Various settings such as speed and duplex are often part of the auto-negotiation protocol. Occasionally, a server will not negotiate with the network switch the highest possible throughput. The duplex setting may improperly negotiate to half, which could result in collisions and errors, but this can be resolved through manually setting the port characteristics.
References: http://netmgt.blogspot.se/2011/05/sun-v890-forcing-qfe-full-duplex.html
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