Sun Neptune
Neptune, also known as Sun Multithreaded 10 GbE, is a dual 10 Gbit/s, multithreaded, PCIe x8-based network card. It was developed and originally produced by Sun Microsystems, and later licensed to Marvell[1].
A Neptune-based NIC is integrated in UltraSPARC T2 CPUs (Network Interface Unit, or NIU)[2].
NIC Features
Stand-alone vs on-chip (NIU) Neptune Features[2]
| Features |
NIU |
PCI-E NIC |
| # 10GbE ports |
2 |
2 |
| # transmit DMA channels/port |
8 |
12 |
| # receive DMA channels/port |
8 |
8 |
| Integrated on-chip? |
UltraSPARC T2 |
No |
| Bus interface? |
No |
8 lane PCI Express |
| Bus bandwidth limit? |
No |
16 Gbit/s each direction |
| Transmit packet classification |
Software |
Software |
| Receive packet classification |
Hardware |
Hardware |
References
- ^ http://www.theregister.co.uk/2007/04/03/marvell_sun_nicsic/
- ^ a b 10 Gigabit Ethernet on UltraSPARC T2 - weblog from Pure See
See also
External links
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