Supermicro AOC-S25G-m2S User Manual
AOC-S25G-m2S
The Supermicro AOC-S25G-m2S is a leading edge 25GbE controller. Based on the Mellanox ConnectX®-4 Lx EN chipset with
features such as VXLAN and NVGRE, it is backward compatible with 10GbE networks and addresses bandwidth demand from
virtualized infrastructures in data center or cloud deployments. It supports the RoCE specification with CPU offload, delivering
low-latency and high-performance over Ethernet networks. Supermicro® Asset Management and thermal detection give an
extra layer of controller health management and peace of mind. The Supermicro AOC-S25G-m2S high performance 25GbE
adapter solution is an excellent choice to enhance network connectivity in data centers and enterprise environments.
Key Features
• Dual SPF28 Connectors
• Low-Prole, Short Length Standard Form Factor
• PCI-E 3.0 x8
• Mellanox ConnectX®-4 Lx EN Ethernet Controller
• Asset Management Features with thermal sensor
• Hardware ooads for VXLAN, NVGRE and
GENEVE encapsulated trac
• Low latency RDMA over Converged Ethernet (RoCE)
• PCI-SIG SR-IOV compliant
• Jumbo Frames support up to 9.6kB
• PXE support
• Erasure Coding Ooad
• NC-SI for IPMI support
• RoHS compliant 6/6
AOC-S25G-m2S
Specications
General
• Mellanox ConnectX®-4 Lx EN dual-port 25Gbps controller
• Compact size low-prole standard form factor
• PCI-E 3.0 x8 (8GT/s, 5GT/s or 2.5GT/s) interface
• Dual SFP28 connectors
• Typical power consumption: 8.7W
Host Interface
• PCI-E 3.0 x8
• Message Signal Interrupt (MSI-X)
Networking Features
• 25G Ethernet Consortium 25 Gigabit Ethernet
• IEEE802.3ae 10 Gigabit Ethernet
• IEEE802.3az Energy Ecient Ethernet
• IEEE 802.3ap based auto-negotiation and KR startup
• IEEE 802.ad, 802.1AX Link Aggregation
• IEEE 802.1Q, 802.1p VLAN tags and priority
• IEEE802.1Qau (QCN) – Congestion Notication
• IEEE 802.1Qaz (ETS)
• IEEE 802.1Qbb (PFC)
• IEEE 802.1Qbg
• IEEE 1588v2
• Jumbo frame support (9.6KB)
CPU Ooad Features
• RDMA over Converged Ethernet (RoCE)
• TCP/UDP/IP stateless ooad
• LSO, LRO, checksum ooad
• RSS, TSS, HDS, VLAN insertion/stripping. Receive ow steering
• Intelligent interrupt coalescence
Overlay Networks
• Stateless ooads for overlay networks and tunneling protocols
• Hardware ooad of encapsulation and decapsulation of NVGRE and
VXLAN overlay networks
Hardware-Based I/O Virtualization
• Single Root IOV
• Multi-function per port
• Address translation and protection
• Multiple queues per virtual machine
• Enhanced QoS for vNICs
• VMware NetQueue support
Storage Ooads
• RAID ooad – erasure coding (Reed-Solomon) ooad
Management Features
• Asset Management features with thermal sensor
• NC-SI for IPMI Support
Virtualization Features
• SR-IOV: up to 256 Virtual Functions
• SR-IOV: up to 16 Physical Functions per port
• 1K ingress and egress QoS levels
• Guaranteed QoS for VMs
Operating System Support
• RHEL/CentOS
• Windows
• FreeBSD
• VMware
• OpenFabrics Enterprise Distribution (OFED)
• OpenFabrics Windows Distribution (WinOF-2)
• XenServer
Remote Boot
• Remote boot over iSCSi
• PXE and UEFI
Operating Conditions
• Operating temperature: 0°C to 55°C (32°F to 131°F)
• Storage temperature: -40°C to 70°C (-40°F to 158°F)
• Storage humidity: 90% non-condensing relative humidity at 35°C
Physical Dimensions
• Card PCB dimensions: 14.2cm x 6.89cm (5.6in x 2.71in) (LxW)
• Height of end brackets: standard – 12cm (4.725in), low-prole – 8cm
(3.15in)
Weight
• 89.58g (0.1975lb)
Supported Platforms:
• Motherboards with minimum PCI-E 3.0 x8 expansion slot
• Server Systems with low-prole or full-height PCI-E 3.0 x8 expansion slot
• NC-SI feature is only supported by Supermicro® motherboards with
corresponding NC-SI connectors
July 2017 1
For the most current product information, visit:
www.supermicro.com
AOC-S25G-m2S
Similar Products
Product Part Number Form Factor Speed PCI-E Connector Typ e Total Ports Chipset
AOC-STG-i4S Standard Low Prole 10GbE PCI-E 3.0 x8 SFP+ 4 Intel® X710
AOC-STG-b4S Standard Low Prole 10GbE PCI-E 3.0 x8 SFP+ 4 Broadcom BCM57840S
AOC-STGN-i1S Standard Low Prole 10GbE PCI-E 2.0 x8 SFP+ 1 Intel® 82599EN
AOC-STGN-i2S Standard Low Prole 10GbE PCI-E 2.0 x8 SFP+ 2 Intel® 82599ES
AOC-STG-i2T Standard Low Prole 10GbE PCI-E 2.1 x8 RJ45 2 Intel® X540
AOC-STG-i4T Standard Low Prole 10GbE PCI-E 3.0 x8 RJ45 4 Intel® XL710
AOC-STGS-i1T Standard Low Prole 10GbE PCI-E 3.0 x4 RJ45 1 Intel® X550
AOC-STGS-i2T Standard Low Prole 10GbE PCI-E 3.0 x4 RJ45 2 Intel® X550
AOC-S40G-i1Q Standard Low Prole 40GbE PCI-E 3.0 x8 QSFP+ 1 Intel® XL710
AOC-S40G-i2Q Standard Low Prole 40GbE PCI-E 3.0 x8 QSFP+ 2 Intel® XL710
AOC-S100G-m2C Standard Low Prole 100GbE PCI-E 3.0 x16 QSFP28 2 Mellanox ConnectX-4 EN
Optional Parts List
Product Part Number Description
CBL-NTWK-0944-MS28C05M SFP28 Copper Cable 0.5m 25GbE SFP28 to SFP28, Passive
CBL-NTWK-0944-MS28C10M SFP28 Copper Cable 1m 25GbE SFP28 to SFP28, Passive
CBL-NTWK-0944-MS28C15M SFP28 Copper Cable 1.5m 25GbE SFP28 to SFP28, Passive
CBL-NTWK-0944-MS28C20M SFP28 Copper Cable 2m 25GbE SFP28 to SFP28, Passive
CBL-NTWK-0944-MS28C25M SFP28 Copper Cable 2.5m 25GbE SFP28 to SFP28, Passive
CBL-NTWK-0944-MS28C30M SFP28 Copper Cable 3m 25GbE SFP28 to SFP28, Passive
CBL-NTWK-0988-QS28C50M-1 QSFP28 to 4x SFP28 Copper Cable 5m 100GbE QSFP28 to 4x 25GbE SFP28, Passive
AOM-SFP28-25GbE-SR-1 SFP28 Transceiver 25GbE SFP28 Transceiver
July 2017 2
For the most current product information, visit:
www.supermicro.com
MKT-0023-07/2017-1.7
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