Virtualization features:
SRIOV support
Intel Virtual Technology (VT) with I/OAT and VMDq
Eight TX and Rx Queue pairs per port
Flexible Port Partitioning - 8 virtual functions (VFs) per port
RX/TX Round-Robin Scheduling
Traffic isolation
Traffic steering
VM to VM packet forwarding
MAC and VLAN anti-spoofing
Malicious driver detection
Storm control
Per-pool statistics, off loads, and jumbo support
IEEE 802.1q VLAN support with VLAN tag insertion for up to 4096 VLANs
Mirroring rules
VEPA (VM switching)
Intel I/O Acceleration Technology (Intel I/OAT) is a suite of features that improves data acceleration across
the platform, from networking devices to the chipset and processors, which helps to improve system
performance and application response times. The suite of features includes the following items:
Intel QuickData Technology: Provides the Direct Memory Access (DMA) engine, which moves data
by using the chipset instead of the processor.
MSI-X: Minimizes the impact of I/O interrupts by load-balancing interrupts across multiple
processor cores.
Low-Latency Interrupts: Allows the adapter to bypass the automatic moderation of time intervals
between the interrupts (based on the sensitivity of the incoming data).
Receive Side Scaling (RSS): Directs the interrupts to a specific processor core based on the
application’s address.
Virtual Machine Device Queues (VMDq) reduce the I/O impact on the Hypervisor in a virtualized server by
performing data sorting and coalescing in the network silicon. VMDq technology uses multiple queues in
the network controller. As data packets enter the network adapter, they are sorted, and packets traveling
to the same destination (or virtual machine) are grouped in a single queue. The packets are then sent to
the Hypervisor, which directs them to their respective virtual machines. Relieving the Hypervisor of packet
filtering and sorting improves overall processor usage and throughput levels.
Single Root I/O Virtualization (SR-IOV) is a method where the adapter and its resources are virtualized so
that virtual machine guest can separately configure and access the virtualized resources without impacting
the use of the same resources by other virtual machines.
The following figure shows the Intel I350-T2 2xGbE BaseT Adapter
Intel I350 Gigabit Ethernet Adapters
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