Sun Quad Port PCIe X8GB Network Adapter
Product number: 501-7606-06
Sun X4447A quad GigE
Sun Neptune
A Neptune-based NIC is integrated in UltraSPARC T2 CPUs (Network Interface Unit, or NIU).
https://docs.oracle.com/cd/E19113-01/x8quad.giga.utp/820-0115-16/820-0115-16.pdf
Features
Four 10/100/1000Base-T Ethernet interfaces
IEEE 802.3ab compliant
Uses Sun’s ASIC and software for innovative throughput networking design
Networking I/O virtualization supporting Solaris LDOM 1.0. (VMware support planned for mid 07)
Hardware-based flow classification for extending parallelism and virtualization to networking
Up to 16 Receive DMA channels and up to 24 Transmit DMA channels, multiple receive and transmit Descriptor Rings and dedicated networking hardware resources (DMA, interrupts, buffer, and more) for each thread or strand
CPU/thread affinity and CPU load balancing at L1,L2,L3 and L4
Dynamic Reconfiguration (DR)
Jumbo frame support (up to 9KBytes)
IPv4/IPv6 and IPMP support
TCP/UDP/IP checksum and CRC32C support
IEEE 802.1Q VLAN support
IEEE 802.1AD Link Aggregation support
pciconf -l -v
chip=0xabcd108e rev=0x01 hdr=0x00
vendor="Oracle/Sun"
device="Multithreaded 10-Gigabit Ethernet Network Controller"