IntroductionRev 1.1
Mellanox Technologies
12
1 Introduction
1.1 Functional Description
Mellanox Ethernet adapters utilizing IBTA RoCE technology provide efficient RDMA services,
delivering high performance to bandwidth and latency sensitive applications. Applications utiliz-
ing TCP/UDP/IP transport can achieve industry-leading throughput over 10 or 40GbE. The hard-
ware-based stateless offload and flow steering engines in Mellanox adapters reduce the CPU
overhead of IP packet transport, freeing more processor cycles to work on the application. Sock-
ets acceleration software further increases performance for latency sensitive applications. This
User Manual relates to the following products:
• Mellanox ConnectX
®
-3 Dual Port 40GbE QSFP Network Adapter for Dell PowerEdge
Servers with full height bracket
• Mellanox ConnectX
®
-3 Dual Port 40GbE QSFP Network Adapter for Dell PowerEdge
Servers with low profile bracket
• Mellanox ConnectX
®
-3 Dual Port 10GbE DA/SFP+ Network Adapter for Dell Power-
Edge Servers with full height bracket
• Mellanox ConnectX
®
-3 Dual Port 10GbE DA/SFP+ Network Adapter for Dell Power-
Edge Servers with low profile bracket
• Mellanox ConnectX
®
-3 Dual Port 10GbE KR Blade Mezzanine Card for Dell Power-
Edge Servers
1.2 Features
The adapters and cards described in this manual support the following features:
• Low latency RDMA over Ethernet
• Traffic steering across multiple cores
• Intelligent interrupt coalescence
• Advanced Quality of Service
• Dual Ethernet ports
• CPU off-load of transport operations
• Application Offload
• End-to-end QoS and congestion control
•Ethernet
• IEEE 802.3ae 10 Gigabit Ethernet
• IEEE 802.3ba 40 Gigabit Ethernet supported on Mellanox ConnectX-3 Dual Port 40GbE QSFP+
Network Adapter only
• IEEE 802.3ad Link Aggregation and Failover
• IEEE 802.1Q, 802.1p VLAN tags and priority
• IEEE 802.1Qau Congestion Notification
• IEEE P802.1Qbb D1.0 Priority-based Flow Control
• Jumbo frame support (10KB)
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