PRODUCT BRIEF

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

The Onload® variant of the XtremeScale™ 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. These features
make the SFN8522-Onload the ultra-low latency Ethernet adapter of choice to deploy as a key component throughout
financial trading infrastructures where two ports of 10GbE are required.
CPU-EFFICIENT NETWORKINGThe XtremeScale SFN8522-Onload dual-port 10GbE Ethernet SFP+ server adapter delivers faster, more efficient
processing of network traffic to accelerate a wide range of applications. The SFN8522-Onload 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 withnear baremetal network performance. Onload adds the option of kernel bypass in Linux guests, providing virtualizedapplications the lowest possible network latency even while virtualized. 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.*ULTRA-LOW LATENCYThe XtremeScale SFN8522-Onload offers fast and efficient hardware that optimizes packet flow to and from the user
application. 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 application-toapplication 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.
*For more information on Solarflare Onload, visit www.solarflare.com/onload

PRODUCT BRIEF

Advanced Features
and 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 & RX sustained line rate with all packet sizes (15Mppsper port)

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

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

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

Advanced 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-Onload

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, 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-116784-CD Issue 2
SFN8522-Onload 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.