Vol 117 Issue 1 2007-11-05 Article 18862 from section "Hardware"

Two Methods Available for Customer Preference

10 GbE ports can be used with the Sun SPARC Enterprise T5120/T5220
servers by either plugging in a dual--port PCI-e Network Interface
Unit (NIC) or using the on-chip dual 10GbE Network Interface Unit
(NIU). There are important tuning parameters for both the NIU and
PCI-e 10 GbE options.

Details at

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