Dual-port 10 Gigabit
PCI Express Interface
802.1p QoS Tagging
The 20,000 Mbps full duplex Ethernet transfer rate per port (40 Gbps aggregate full duplex) delivers
outstanding network performance that improves response time and removes bottlenecks for the next
generation data center. 10 Gigabit Ethernet bandwidth is ideal for financial services, high performance
computing, database clusters, iSCSI storage, storage backups, grid systems, virtualization, server and I/O
consolidation, fabric consolidation, and more.
The HP 571SFP+ Adapter is designed with an eight lane (x8) PCI Express bus based on the PCIe v2.0
standard. The adapter is backward compatible with four lane (x4) PCI Express, automatically auto-sensing
between x8 and x4 slots.
The HP 571SFP+ Adapter supports jumbo frames (also known as extended frames), permitting up to a 9K
byte (KB) transmission unit (MTU) when running Ethernet I/O traffic. This is over 5X the size of a standard
1500-byte Ethernet frame. With jumbo frames, networks can achieve higher throughput performance and
greater CPU utilization. These attributes are particularly useful for database transfer and tape backup
For overall improved system response, the HP 571 SFP+ adapter supports standard TCP/IP offloading
TCP/IP checksum offload (TCO) moves the TCP and IP checksum offloading from the CPU to the
Large Send Offload (LSO) or TCP Segmentation Offload (TSO) allows the TCP segmentation to be
handled by the adapter rather than the CPU.
Interrupt coalescing (interrupt moderation) groups multiple packets, thereby reducing the number of
interrupts sent to the host. This process optimizes host efficiency, leaving the CPU available for other
IEEE 802.1Q virtual local area network (VLAN) protocol allows each physical port of the HP 571SFP+
adapter to be separated into multiple virtual NICs for added network segmentation and enhanced security
and performance. VLANs increase security by isolating traffic between users. Limiting the broadcast traffic
to within the same VLAN domain also improves performance. The HP 571SFP+ Adapter provides support
for 802.1Q (VLAN).
Like all HP ProLiant server adapters, the HP 571 SFP+ adapter ships with agents that can be managed from
HP Systems Insight Manager or other management application that support SNMP.
DA - 14666 North America — Version 1 — September 30, 2013
HP Ethernet 10Gb 2-port 571SFP+ Adapter