Solarflare Communications SFN7322F Leaflet
SFN7322F
Flareon Ultra SFN7322F Dual-Port 10GbE PCIe 3.0
PTP Server I/O Adapter with Hardware Time Stamping
PTP Server I/O Adapter with Hardware Time Stamping
sales@solarflare.com
US 1.949.581.6830 x2930
UK +44 (0)1223 477171
HK +852 2624-8868
www.solarflare.com
Flareon™ Ultra SFN7322F dual-port 10G Ethernet SFP+ server adapter combines accurate
host clock synchronization and precise hardware packet time stamping with unmatched message
rates and ultra-low latency 10G Ethernet. The SFN7322F delivers unmatched precision and
performance on a single data network and in a single PCIe slot for financial services and other
enterprise data centers with the industry’s lowest power consumption for additional cost savings.
host clock synchronization and precise hardware packet time stamping with unmatched message
rates and ultra-low latency 10G Ethernet. The SFN7322F delivers unmatched precision and
performance on a single data network and in a single PCIe slot for financial services and other
enterprise data centers with the industry’s lowest power consumption for additional cost savings.
SFN7322F Highly Accurate Time Synchronization and Precise Hardware Time Stamping
Solarflare’s SFN7322F utilizes a highly stable and precise Stratum 3 clock source, which enables a
server to be synchronized to a data network clock with greater precision. Standard crystals can
drift significantly, resulting in an inferior solution for clock synchronization and time stamping. For
example, between PTP synchronization cycles a typical 15 PPM crystal can drift up to 4000%
more than the SFN7322’s 0.37 PPM Stratum 3 clock source. Consequently, the SFN7322F
significantly improves server clock accuracy and time stamp precision. SFN7322F also features a
Pulse Per Second (1PPS) input circuit that can be used to calibrate the PTP offset, and an accurate
1PPS output circuit aligned to the SFN7322F's Stratum 3 clock.
Solarflare’s SFN7322F utilizes a highly stable and precise Stratum 3 clock source, which enables a
server to be synchronized to a data network clock with greater precision. Standard crystals can
drift significantly, resulting in an inferior solution for clock synchronization and time stamping. For
example, between PTP synchronization cycles a typical 15 PPM crystal can drift up to 4000%
more than the SFN7322’s 0.37 PPM Stratum 3 clock source. Consequently, the SFN7322F
significantly improves server clock accuracy and time stamp precision. SFN7322F also features a
Pulse Per Second (1PPS) input circuit that can be used to calibrate the PTP offset, and an accurate
1PPS output circuit aligned to the SFN7322F's Stratum 3 clock.
The SFN7322F provides a comprehensive
IEEE 1588 precision time protocol solution
which includes a unique PTP daemon (PTPd
v2) with advanced features. The SFN7322F
eliminates the need for a secondary server
adapter and dedicated appliances, as well as
additional physical networks, otherwise
required for clock distribution.
IEEE 1588 precision time protocol solution
which includes a unique PTP daemon (PTPd
v2) with advanced features. The SFN7322F
eliminates the need for a secondary server
adapter and dedicated appliances, as well as
additional physical networks, otherwise
required for clock distribution.
High-Precision Hardware Time Stamping
The SFN7322F performs high-precision
hardware time stamping of all received
Ethernet frames at line rate on both ports.
The SFN7322F enables nanosecond
network performance analysis, precise real-
time packet capture, and accurate Service
Level Agreement (SLA) measurements.
hardware time stamping of all received
Ethernet frames at line rate on both ports.
The SFN7322F enables nanosecond
network performance analysis, precise real-
time packet capture, and accurate Service
Level Agreement (SLA) measurements.
The SFN7322F driver is compatible with the
SFN7122F, and seamlessly interfaces to
host software time synchronization solutions
that utilize the standard Linux socket option
SO_TIMESTAMPING.
SFN7122F, and seamlessly interfaces to
host software time synchronization solutions
that utilize the standard Linux socket option
SO_TIMESTAMPING.
Complete Time Synchronization Solution
Solarflare provides its enhanced PTPd v2
daemon with unique features to enable a
complete solution to synchronize the host
server clock to the network master clock:
daemon with unique features to enable a
complete solution to synchronize the host
server clock to the network master clock:
• Dual-clock servos
• PTP clock failover with bonding
• Hybrid multicast mode
• PTP operation in VLANs
• PTP clock failover with bonding
• Hybrid multicast mode
• PTP operation in VLANs
Ultra-Low Latency
With OpenOnload
®
, the SFN7322F delivers
packets directly to user space, bypassing
kernel and network overheads while maintaining
complete application compatibility and protocol
compliance. This integrated solution accelerates
latency-sensitive applications where precision
time is critical, such as high performance
computing, cloud, grid, and financial services
in enterprise data center environments.
kernel and network overheads while maintaining
complete application compatibility and protocol
compliance. This integrated solution accelerates
latency-sensitive applications where precision
time is critical, such as high performance
computing, cloud, grid, and financial services
in enterprise data center environments.
The Flareon Ultra SFN7322F supports PCIe
3.0 with ultra-low latency features such as
direct packet transfer (Tx PIO) mode, which
includes a templated send API. The SFN7322F
reduces CPU load with hardware acceleration
features that optimize packet delivery, such
as UDP multicast replication, integrated layer
2 switching capability, VLAN insertion / removal,
and TCP segmentation offload (TSO).
3.0 with ultra-low latency features such as
direct packet transfer (Tx PIO) mode, which
includes a templated send API. The SFN7322F
reduces CPU load with hardware acceleration
features that optimize packet delivery, such
as UDP multicast replication, integrated layer
2 switching capability, VLAN insertion / removal,
and TCP segmentation offload (TSO).
SFN7322F
PTP master
Server running PTPd (slave)
SFN7322F dual-clock servo precision