Solarflare Communications SFN6322F Leaflet

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SFN6322F
Dual-Port 10GbE SFP+ Onload Precision Time 
Synchronization Server Adapter 
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Solarflare
®
SFN6322F dual-port 10G Ethernet SFP+ Onload server adapter combines precision
time synchronization with unmatched message rates and ultra-low latency 10G Ethernet, both
accelerating time synchronization and providing the industry’s best application performance on
a single data network and in a single PCIe slot. The SFN6322F delivers unmatched scalable
performance for financial services and other enterprise data centers with the industry’s lowest
power consumption for additional cost savings.
SFN6322F High-Precision Time Synchronization
Solarflare’s SFN6322F utilizes a high-precision clock source, which meets the rigorous requirements
for use in a Stratum 3 clock system for network synchronization. SFN6322F’s high-precision clock
stability enables servers to synchronize to a data network clock with greater precision, and serve as a
highly stable and precise clock source. Alternative products utilizing crystals can drift significantly over
time, temperature, and age, resulting in an inferior clock synchronization solution. For example, between
synchronization cycles a typical 15 PPM crystal can drift 4000% more than the SFN6322’s 0.37 PPM
Stratum 3 clock source, significantly impacting time stamp precision. Consequently, in PTP applications
the SFN6322F limits drift and increases precision, which are key factors for high-precision PTP clock
synchronization. SFN6322F features a Pulse Per Second (1PPS) input that can be utilized to calibrate
the PTP offset. SFN6322F also features an extremely accurate 1PPS output timing signal aligned to
the SFN6322F's Stratum 3 clock. 
The SFN6322F accelerates time synchro-
nization by performing high-precision hard-
ware time stamping of IEEE 1588 Ethernet
frames together with high-performance,
ultra-low latency application acceleration.
The SFN6322F eliminates a secondary
server adapter (freeing PCIe slots) and
dedicated appliances, as well as additional
physical networks, which would otherwise be
required for clock distribution, while facilitating
slave servers to precisely synchronize internal
clocks to a network master clock. Combining
the industry's lowest latency at high message
rates with clock synchronization on a single
network simplifies latency-sensitive applica-
tions where clock synchronization is critical,
such as financial services, industrial automa-
tion, geological sciences, and telecomm 
synchronization.
The SFN6322F driver is compatible with the
SFN6122F and SFN5122F products, and
seamlessly interfaces to host software time
synchronization solutions that utilize the standard
Linux socket option SO_TIMESTAMPING,
such as the PTPv2 daemon, which imple-
ments the IEEE1588 time synchronization 
protocol. Driver interfaces to kernels that pre-
date SO_TIMESTAMPING are also available.
Lowest Latency at Highest Message Rates
SFN6322F delivers the industry’s lowest 
latency at highest message rates to customers
with leading edge financial services and en-
terprise data center deployments. SFN6322F
also delivers the industry’s lowest latency 
jitter, with full 40 Gbps bidirectional line rate
performance. Featuring a rich set of stateless
offloads, it provides efficient acceleration of
the most demanding network protocol tasks.
SFN6322F supports Solarflare’s OpenOnload
®
application accelerator, a full-featured, high-
performance user-level network stack for Linux.
OpenOnload provides unprecedented low 
latency performance with application
compatibility and protocol compliance,
bypassing kernel and networking overheads,
while featuring binary compatibility with standard
APIs and applications.
Lowest Power
At 3.1 watts per port, the SFN6322F enables
a uniquely low power budget increasing the
efficiency of combining ultra-low latency 10G
Ethernet with the additional precision time
stamping capabilities.
SFN6322F