Product Features
Industry-leading throughput and latency performance
Operates at 1Gbps/10Gbps, auto-negotiation, on both ports
10GBASE-T connectivity supporting up to 100 meters with CAT 6A cabling (or better)
Up to 40Gb/s bi-directional near line rate throughput
Hardware acceleration TCP/IP/UDP stateless offloads Superior small packet performance
Low profile design shipping with standard height and low-profile brackets
SR-IOV capable in hardware (requires server FW, SW and OS support)
Active Health System support
PXE, Jumbo Frames, Checksum & Segmentation Offload, IPv6 and RSS
On chip temperature monitor (Sea of Sensors)
Field replaceable and upgradeable
Support for Preboot eXecution Environment (PXE)
IEEE 1588 (Time Synchronization) ready
Dual-port 10 Gigabit
Ethernet Throughput
The HP 561T adapter delivers 20 Gbps full duplex Ethernet transfer rate per port , providing the network
performance needed to improve response times and alleviate bottlenecks that impact performance of
next generation data centers. 10Gb Ethernet bandwidth is ideal for high performance computing, database
clusters, and more.
Jumbo Frames
The HP 561T adapter supports jumbo frames (also known as extended frames), permitting up to a 9.5K
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
improve CPU utilization. These attributes are particularly useful for database transfer and tape backup
operations.
TCP/IP Stateless
Offloading
TCP, IP, UDP checksum offload, Large Send Offload (LSO), TCP Segmentation Offload (TSO). These
features optimize host efficiency, leaving the CPU available for other duties.
The HP 561T Adapter offers TCP/IP stateless offloading capability.
MSI and MSI-X
Message Signaled Interrupt (Extended) provides performance benefits for multi-core servers by load
balancing interrupts between CPUs/cores. The HP 561T Adapter supports MSI and MSI-X.
802.1Q VLANs
IEEE 802.1Q virtual local area network (VLAN) protocol allows each physical port of the HP 561T 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 561T adapter provides support for
802.1Q (VLAN).
QuickSpecs
HP Ethernet 10Gb 2-port 561T Adapter
Standard Features
DA - 14614 North America — Version 1 — September 10, 2013
Page 3
