Nvidia ConnectX-6 Dx User Manual

12
•
•
OPN MCX623435AN-VDAB MCX623435AC-VDAB MCX623435AS-VDAI
Device ID 4125 for Physical Function (PF)
4126 for Virtual Function (VF)
For more detailed information seeSpecifications.
Features and Benefits
Feature Description
PCI Express (PCIe) Uses PCIe Gen 3.0 (8GT/s) or Gen 4.0 (16GT/s) through x16 edge connector.
Up to 200 Gigabit
Ethernet
NVIDIA adapters comply with the following IEEE 802.3 standards:
• 200GbE / 100GbE / 50GbE / 40GbE / 25GbE / 10GbE / 1GbE
• IEEE 802.3bj, 802.3bm 100 Gigabit Ethernet
• IEEE 802.3by, Ethernet Consortium25, 50 Gigabit Ethernet, supporting all FEC modes
• IEEE 802.3ba 40 Gigabit Ethernet
• IEEE 802.3by 25 Gigabit Ethernet
• IEEE 802.3ae 10 Gigabit Ethernet
• IEEE 802.3ap based auto-negotiation and KR startup
• Proprietary Ethernet protocols (20/40GBASE-R2, 50GBASE-R4)
• IEEE 802.3ad, 802.1AX Link Aggregation
• IEEE 802.1Q, 802.1P VLAN tags and priority
• IEEE 802.1Qau (QCN)
• Congestion Notification
• IEEE 802.1Qaz (ETS)
• IEEE 802.1Qbb (PFC)
• IEEE 802.1Qbg
• IEEE 1588v2
• Jumbo frame support (9.6KB)
Memory Components
EEPROM - The EEPROM capacity is 32Kbit. FRU I
2
C address is (0x50) and is
accessible through the PCIe SMBus (Note: Address 0x58 is reserved.)
SPI Quad - includes 256Mbit SPI Quad Flash device (MX25L25645GXDI-08G
device by Macronix)
Overlay Networks In order to better scale their networks, data center operators often create overlay
networks that carry traffic from individual virtual machines over logical tunnels in
encapsulated formats such as NVGRE and VXLAN. While this solves network scalability
issues, it hides the TCP packet from the hardware offloading engines, placing higher
loads on the host CPU. ConnectX®-6 Dx effectively addresses this by providing
advanced NVGRE and VXLAN hardware offloading engines that encapsulate and de-
capsulate the overlay protocol.
RDMA and RDMA
overConverged
Ethernet (RoCE)
ConnectX®-6 Dx, utilizing RDMA (Remote Data Memory Access) and RoCE (RDMA over
Converged Ethernet) technology, delivers low-latency and high-performance over
Band and Ethernet networks. Leveraging data center bridging (DCB) capabilities as
well as ConnectX®-6 Dx advanced congestion control hardware mechanisms, RoCE
provides efficient low-latency RDMA services over Layer 2 and Layer 3 networks.
This section describes hardware features and capabilities. Please refer to the relevant
driver and/or firmware release notes for feature availability.
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Nvidia ConnectX-6 Dx Specifications

General

Product Name	Nvidia ConnectX-6 Dx
Category	Adapter
Network Interface	Ethernet, InfiniBand
Port Speed	200Gb/s
Form Factor	Low Profile
PCIe Interface	PCIe 4.0 x16
Operating Temperature	0°C to 55°C
Product Type	Network Adapter
InfiniBand Support	Yes
RoHS Compliance	Yes
Virtualization Support	SR-IOV
Data Link Protocol	Ethernet, InfiniBand
Ports	2
Ethernet Standards	IEEE 802.3
Security Features	IPsec, TLS