LR-LINK LREC9801BF-TX / LREC9801BF-RX, 10 Gigabit
Uni-directional Fiber Server Adapter are composed byTransmit network card and receive network
card, connecting by uni-directional LC fiber patch cord. Theyare the most flexible and scalable Ethernet
adapters to meet the demands of todays data center environments. Data center
networks are being pushed to their limits. The escalating deployments of
servers with multi-core processors and demanding applications such as High
Performance Computing (HPC), database clusters, and video-on-demand are driving
the need for 10 Gigabit connections. Customers require flexible and scalable
I/O solutions to meet the rigorous requirements of running mission-critical
applications in virtualized and unified storage environments.
Best Choice for Virtualization
The explosive growth in virtualization is leading
to an increasing demand for network performance. With more Virtual Machines
(VMs) running on each multi-core server, networking traffic is dramatically
increased with each VM competing for available I/O bandwidth. LR-LINK LREC9801BF-TX
/ LREC9801BF-RX 10G Server Adapters address networking bottlenecks in
virtualized environments. These adapters enable network-intensive applications
to achieve the performance expected in a virtualized environment.
The LR-LINK 10G LREC9801BF-TX / LREC9801BF-RX
server adapter provides the best networking performance available in the
industry, whether the physical port is configured in an emulation mode using
the virtual switch in the Virtual Machine Monitor (VMM), or is directly
assigned to a virtual machine. In the emulation mode, Intels I/O technology,
Virtual Machine Device queues1 (VMDq)
optimizes network performance by offloading data sorting and copying from the
software Virtual Switch in the VMM to the Intel Ethernet 82599 10 Gigabit
Controller. This configuration is best suited for a large number of VMs running
standard applications that have limited bandwidth and latency requirements.
For mission-critical applications, where dedicated
I/O is required for maximum network performance, users can assign a dedicated
virtual adapter port to a VM. Using the PCI-SIG SR-IOV capability on an LR-LINK
LREC9801BF-TX / LREC9801BF-RX 10G server adapter provides direct VM
connectivity and data protection across VMs.SR-IOV technology allows the data
to bypass the software virtual switch and provides near-native performance. It
assigns either physical or virtual I/O ports to individual VMs directly. This
technology is best suited for applications that demand the highest I/O
throughput and lowest latency performance such as database, storage, financial
and other applications.
PCI-SIG SR-IOV is a mechanism for devices to
advertise their ability to be directly assigned to multiple virtual machines.
SR-IOV allows for the partitioning of a PCI function into many virtual
interfaces for the purpose of sharing the resources of a PCI Express- (PCIe)
device in a virtual environment. These virtual interfaces are called Virtual
Functions. Each virtual function can support a unique and separate data path
for I/O-related functions within the PCI Express hierarchy. Use of SR-IOV with
a networking device, for example, allows the bandwidth of a single port
(function) to be partitioned into smaller slices that may be allocated to
specific VMs, or guests, via a standard interface.
The LR-LINK LLREC9801BF-TX / LREC9801BF-RX 10G
server adapter delivers the same functionality and throughput as ten
single-port, one gigabit adapters, saving cost, power, and complexity.