Flareon Ultra SFN7042Q provides the best overall performance with low CPU utilization for 40GbE or 10GbE networking. SFN7042Q
can be configured as a dual-port 40GbE or quad-port 10GbE adapter as each 40GbE QSFP+ port can also operate as dual 10GbE SFP+ ports by using breakout cables including the Solarflare SOLR-QSFP2SFP-1M & -3M QSFP+ to 2 SFP+ copper DAC cables.


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Model Number

Flareon SFN7042Q Dual-Port 40GbE

Stable Precision Oscillator

Stratum 3 compliant

I/O Virtualization

2048 guest OS protected vNICs; SR-IOV; 240 virtual functions; 16 physical functions

PCI Express

PCIe 3.0 x8 @ 8.0 GT/s

SFC9140 10/40G Ethernet Controller

Supports high-performance 40GbE and 10GbE

QSFP+ Support

Supports optical QSFP+ modules including Solarflare SFM40G-SR4, Direct-Attach Copper, Solarflare QSFP+ to SFP+ copper DAC cables (SOLR-QSFP2SFP-1M & -3M)

Low Latency

Cut-through architecture/intelligent interrupt coalescing

Receive Side Scaling (RSS)

Distributes IPv4, IPv6 loads across all CPU cores; MSI-X minimizes interrupt overhead

Hardware Offloads

TSO, LRO, GSO; IPv4/IPv6; TCP, UDP checksums

Adapter Teaming/Link Aggregation

LACP for redundant 10GbE links (compatible with MLAG)

Jumbo Frames

9216 byte MTU for performance

Enhanced Tuning

Adaptive interrupt moderation

IP Flow Filtering

Hardware directs packets based on IP, TCP, UDP headers

Advanced Packet Filtering

4096 multicast filters; 4096 VLANs/port; adaptive TCP/UDP/IP, MAC, VLAN, RSS, RFS filtering; Accelerated Receive Flow Steering (RFS)

Intel QuickData™

Uses host DMA engines to accelerate I/O

Remote Boot

PXE, iSCSI boot; unattended installation



Virtualization Support

VMware ESXi; Microsoft Hyper-V; Linux KVM and Xen

Operating Systems

RHEL 5, 6, 7, MRG; SLES 10, 11, 12, SLERT; Debian 6.0, 7.0; Ubuntu 12.04 LTS, 14.04 LTS, 14.10; other Linux; Windows Server 2008 R2, 2012, 2012 R2; XenServer 6.2, 6.5

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