PRODUCT BRIEF

XtremeScale™ SFN8522-PLUS
Dual-Port 10GbE SFP+ Network Adapter

The PLUS variant of the SFN8522 dual-port 10GbE SFP+ server I/O adapter adds a suite of enabled software capabilities
that provide out-of-the box support for ultra-low latency Onload®-accelerated sockets as well as PPS and PTP timesynchronization support.
The SFN8522-PLUS is capable of associating a hardware time-stamp with every incoming and outgoing Ethernet frame
for application troubleshooting or performance monitoring. These features make the SFN8522-PLUS the ultra-low latencyEthernet adapter of choice to deploy as a key component throughout financial trading infrastructures where two ports of10GbE are required.
CPU-EFFICIENT NETWORKINGThe XtremeScale™ SFN8522-PLUS dual-port 10GbE Ethernet SFP+ server adapter delivers faster, more efficient
processing of network traffic to accelerate a wide range of applications. The SFN8522-PLUS has 8 lanes of PCIe 3.1
minimizing latency and maximizing bus throughput between the adapter and the host.
FLEXIBILITY IN OPERATION
In a virtualized environment the adapter supports hypervisor bypass via SR-IOV providing virtualized guests with nearbare-metal network performance. Multiple physical functions are also available enabling the ports to be partitioned
when connected to 802.1Q trunked switch ports with a logical interface per VLAN being presented to the operating
system.
Ports on the same adapter or across multiple adapters may be bonded for redundant operation. This redundancy
support also extends to Onload with accelerated sockets capable of running across both active-passive and active-active
LACP-enabled links. The SFN8522-PLUS enables the following licensed features:ULTRA-LOW LATENCYThe XtremeScale SFN8522-PLUS offers fast and efficient hardware that optimizes packet flow to and from the userapplication. The SFN8522-PLUS unlocks unrivaled submicrosecond latency both at Layer 2 and TCP and UDP via Onload.
ONLOAD
Onload is Solarflare’s industry-leading fully RFC-compliant kernel-bypass user-space TCP/IP stack. Unrivaled applicationto-application TCP and UDP latency is available with no modification to the applications being accelerated. Applications
may communicate via Onload to any other RFC-compliant TCP/IP stack with seamless interoperability.
PRECISION TIMEThe SFN8522 is equipped with a Stratum 3 oscillator providing class-leading clock stability. The SFN8522-PLUS enables
the use of sfptpd, Solarflare’s time synchronization daemon, which leverages the adapter’s ability to apply hardware
time-stamps to incoming and outgoing Ethernet frames to synchronize its oscillator either via the PTPv2 protocol or a
combination of PPS and NTP. Sfptpd also enables the Linux real-time clock to be synchronized to the external timingreference via the adapter clock. Any time-stamps obtained from either packet events or via the Linux time API may now
be correlated directly with the external timing source. These features allow users to implement event traceability thatexceeds the MIFID II requirements.

PRODUCT BRIEF

Advanced Featuresand Benefits
Stable Precision Oscillator• Stratum 3 compliant

I/O Virtualization• 2048 guest OS protected vNICs; SR-IOV; 240 virtual functions• 16 physical functions; 16 NIC partitions

PCI Express• PCIe 3.1 x8 @ 8.0 GT/s

SFC9240 10G Ethernet Controller• Supports high-performance 10GbE

SFP+ Support• Supports optical SFP+ modules including Solarflare SFM10G-SR,
Direct-Attach Copper, Active Optical Cables

1000BASE-T SFP Support• Supports 1G 1000BASE-T SFP modules

Low Latency• Cut-through architecture/intelligent interrupt coalescing

Packet Rate

• 30Mpps TX & RS sustained line rate with all packet sizes (15Mppsper port)

Receive Side Scaling (RSS)• Distributes IPv4, IPv6 loads across all CPU cores; MSI-X minimizes
interrupt overhead

Hardware Offloads• TSO, LRO, GSO, IPv4/IPv6 and TCP/UDP checksums

IP Flow Filtering• Hardware directs packets based on IP, TCP, UDP headersAdvanced Packet Filtering

Specifications
Standards & Compliance• IEEE802.3-2012 Ethernet base standard, including 802.3bx,802.3bd, 802.3x• 802.3ae (10 Gigabit Ethernet over fiber)• 802.3z (1000BASE-X Gbit/s Ethernet over fiberoptic at 1Gbit/s (125MB/s)• 1000BASE-X• 10GBASE-CR -SR -LR• Dual SFP+ (SFF-8431 Rev 4.1) connectors• RoHS compliantPower• 7.3W (typical)

Operating Range• 0º to 55º C• 200 LFM, Min.

Physical Dimensions

PCB dimensions (PCIe half-length low profile)• L: 16.76 cm (6.6 in)• W: 6.89 cm (2.7 in)
Overall dimensions with full height bracket• L: 18.1 cm (7.13 in)• W: 12.1 cm (4.76 in)Overall dimensions with low profile bracket• L: 18.1 cm (7.13 in)• W: 8.0 cm (3.15 in)Ordering Information• SFN8522-PLUS

Note: Feature availability is dependent on software release support
Please contact Solarflare support for details.

• 4096 multicast filters; 4096 VLANs/port; adaptive TCP/UDP/IP,MAC, VLAN, RSS, RFS filtering; accelerated RFS

Remote Boot• PXE; unattended installation; UEFI; Solarflare secure bootManagement• SNMP, ACPI v3.0

Overlay Network Acceleration• VXLAN, NVGRE, GENEVE

Switching Support• Integrated Layer 2 Ethernet switch, VEB/virtual switch

Virtualization• VMware ESXi 5.x, 6.0; Microsoft Hyper-V; Linux KVM

Operating Systems• RHEL 6.7 - 7, MRG; SLES 11, 12, SLERT; Debian 7.x, 8.x, Ubuntu
14.04 LTS; 14.10, 15.04; other Linux; Windows Server 2008 R2,2012, 2012 R2

For more information please visit: solarflare.com
Contact Us: US +1 949 581 6830 | UK +44 (0) 1223 477171

HK +852 2624 8868 | Email: sales@solarflare.com

SF-116323-CD Issue 2
SFN8522-PLUS Product Brief 073019

Onload, ServerLock, SolarCapture, and XtremeScale are trademarks of Solarflare Communications, Inc. Other trademarks are property of theirrespective owners. Copyright © 2016 Solarflare Communications, Inc. All rights reserved.