25GbE Specifications | ||
• Networking Features - Jumbo frames - 802.3x flow control - Link Aggregation (802.3ad) - Virtual LANs- 802.1q VLAN tagging - Configurable Flow Acceleration - IEEE 1588 and Time Sync • Stateless Offload Features: - TCP, UDP, IPv4, IPv6 checksum offload - Large Send Offload - Receive Segment Coalescing - TCP Segmentation Offload - Large Receive Offload - Receive Side Scaling (RSS) - Transmit Side Scaling (TSS) • NIC Partitioning (NPAR): - 16 Physical Functions - QoS per partition - Partitioning control via sideband communication - Up to 64 MAC/VLAN filter per partition - Per partition statistics support - Stateless offloads configuration per partition - VEB/VEPA support • Virtualization Features: - NetQueue, VMQueue, and Multiqueue - Support for 128 Virtual Functions - VXLAN, NVGRE and Geneve - Edge Virtual Bridging (EVB) • RDMA over Converged Ethernet (RoCE): - RoCEv1 and RoCEv2 - Data Center Bridging with RoCE • Flow Processing: - Exact/Wildcard Match Flow Lookup - VLAN insertion/deletion - NAT/NAPT - Mirroring • Data Center Bridging: - Priority-based flow control (PFC; IEEE 802.1Qbb) - Enhanced transmission selection (ETS; IEEE 802.1Qau) - Quantized congestion Notification (QCN; IEEE 802.1Qau) - Data Center Bridging Capability eXchange (DCBX; IEEE 802.1Qaz) - 8 traffic classes per port; fully DCB compliant per 802.1Qbb • Power Savings: - ACPI compliant power management - PCI Express Active State Power Management (ASPM) - Ultra low-power mode - Pass-through Energy Efficient Ethernet (IEEE 802.3az-2010) |
GbE Specifications | ||
• Ethernet Features: - IEEE 802.3 auto-negotiation for speed, duplex, and flow control - IEEE 802.3x and 802.3z compliant flow control support - Automatic cross-over detection function (MDI/MDI-X) - 1Gb/s Ethernet IEEE 802.3, 802.3u,802.3ab PHY specifications Compliant - IEEE 1588 protocol and 802.1AS implementation • Power Management and Efficiency: - Energy Efficient Ethernet (EEE) - DMA Coalescing reduces platform power consumption - Active State Power Management (ASPM) support - LAN disable function - MAC Power Management controls - Low Power Link Up - Link Speed Control • Virtualization Features: - PC-SIG SR-IOV support - VM to VM Packet forwarding (Packet Loopback) - Flexible Port Partitioning - IEEE 802.1q VLAN support - IEEE 802.1q advanced packet filtering - Jumbo Frames support • Performance Features: - TCP/UDP, IPv4 and IPv6 checksum offloads to improve CPU usage - Low Latency Interrupts - Tx TCP segmentation offload (IPv4, IPv6) increases throughput and lowers processor usage - Receive Side Scaling (RSS) for Windows environment, Scalable I/O for Intelligent interrupt generation • Management Features: - Preboot eXecution Environment (PXE) support - iSCSI Remote Boot Support - NC-SI for remote management |
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