Supermicro AOC-A25G-b2SB User manual

User's Guide
Revision 1.0b
AOC-A25G-b2S
AOC-A25G-b2SM
AOC-A25G-b2SB
AOC-A25G-b2SG

User's Guide Revision 1.0b
Release Date: November 4, 2022
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!

Preface
About this User's Guide
This user's guide is written for system integrators, PC technicians, and
knowledgeable PC users. It provides information for the installation and use of the
AOC-A25G-b2S(M/B/G) add-on card.
About this Add-on Card
Supermicro®Advanced I/O Modules (AIOM) is the latest form factor designed to
provide a wide range of networking options and other I/O technologies. Based on
the Broadcom®BCM57414 with features such as VXLAN, NVGRE, RoCE, and NIC
Partitioning, this card provides unparalleled density, performance, and functionality.
The Supermicro®AOC-A25G-b2S(M/B/G) is one of the market's most feature-rich
and low-power consumption 25GbE controllers. As the 25GbE controller is the most
versatile in the market, it is an excellent choice to enhance network connectivity in
data centers and enterprise environments.
An Important Note to the User
All images and layouts shown in this user's guide are based upon the latest PCB
revision available at the time of publishing. The card you have received may or may
not look exactly the same as the graphics shown in this user's guide.
Returning Merchandise for Service
A receipt or copy of your invoice marked with the date of purchase is required before
any warranty service will be rendered. You can obtain service by calling your vendor
for a Returned Merchandise Authorization (RMA) number. When returning the add-
on card to the manufacturer, the RMA number should be prominently displayed on
the outside of the shipping carton, and the shipping package is mailed prepaid or
hand-carried. Shipping and handling charges will be applied for all orders that must
be mailed when service is complete. For faster service, you can also request an
RMA authorization online http://www.supermicro.com/RmaForm/.
This warranty only covers normal consumer use and does not cover damages in-
curred in shipping or from failure due to the alternation, misuse, abuse or improper
maintenance of products.
During the warranty period, contact your distributor rst for any product problems.
Preface
iii

iv
Super AOC-A25G-b2S(M/B/G) Add-on Card User's Guide
Conventions Used in the User's Guide
Pay special attention to the following symbols for proper system installation and for
safety instructions to prevent damage to the system or injury to yourself:
Warning: Important information given to ensure proper system installation
or to prevent damage to the components or injury to yourself.
Note: Additional information given for proper system setup.
Naming Convention for Standard Network Adapters

v
Preface
Contacting Supermicro
Headquarters
Address: Super Micro Computer, Inc.
980 Rock Ave.
San Jose, CA 95131 U.S.A.
Tel: [phone]
Fax: [phone]
Email: [email protected] (General Information)
[email protected] (Sales Inquiries)
[email protected] (Gov. Sales
Inquiries)
[email protected] (Technical Support)
[email protected] (RMA Support)
[email protected] (Webmaster)
Website: www.supermicro.com
Europe
Address: Super Micro Computer B.V.
Het Sterrenbeeld 28, 5215 ML
's-Hertogenbosch, The Netherlands
Tel: [phone]
Fax: [phone]
Email: [email protected] (Sales Inquiries)
Support_Europe@supermicro (Technical Support)
RMA_Europe@supermicro (RMA Support)
Website: www.supermicro.nl
Asia-Pacic
Address: Super Micro Computer, Inc.
3F, No. 150, Jian 1st Rd.
Zhonghe Dist., New Taipei City 235
Taiwan (R.O.C)
Tel: [phone]
Fax: [phone]

vi
Super AOC-A25G-b2S(M/B/G) Add-on Card User's Guide
Asia-Pacic
Email: [email protected] (Sales Inquiries)
[email protected] (Technical Support)
[email protected] (RMA Support)
Website: www.supermicro.com.tw

Preface
Table of Contents
Preface
Chapter 1 Overview
1-1 Overview ......................................................................................................... 1-1
1-2 Key Features................................................................................................... 1-1
1-3 Technical Specications .................................................................................. 1-2
1-4 Available SKUs ............................................................................................... 1-5
Chapter 2 Hardware Components
2-1 Add-On Card Image and Layout..................................................................... 2-1
2-2 Major Components.......................................................................................... 2-5
2-3 SFP28 Ethernet Connections.......................................................................... 2-6
2-4 Jumper Settings .............................................................................................. 2-7
2-5 Major Components of AIOM Module............................................................... 2-8
Chapter 3 Installation
3-1 Static-Sensitive Devices.................................................................................. 3-1
3-2 Before Installation ........................................................................................... 3-2
3-3 Uninstalling and Installing the AOC-A25G-b2S (with 1U bracket).................. 3-3
3-4 Uninstalling and Installing the AOC-A25G-b2SM (with 0.5U bracket)............ 3-6
3-5 Installing Drivers on Windows......................................................................... 3-9
3-6 Installing Drivers (for Broadcom®BCM57414).............................................. 3-10
vii

Chapter 1: Overview
1-1
Chapter 1
Overview
1-1 Overview
Congratulations on purchasing your add-on card from an acknowledged leader in
the industry. Supermicro products are designed with the utmost attention to detail
to provide you with the highest standards of quality and performance. For product
support and updates, please refer to our website at http://www.supermicro.com/
products/nfo/networking.cfm#adapter.
1-2 Key Features
• Advanced I/O Module (AIOM) form factor
• Broadcom®BCM57414 25GbE controller
• Support for 25GbE and 10GbE speeds
• Dual SFP28 connectors
• RDMA over Converged Ethernet (RoCE)
• Network overlay: VXLAN, NVGRE, and Geneve
• NIC Partitioning (NPAR)
• Broadcom® TruFlowTM ow processing engine
• Asset Management features with thermal sensor
• NC-SI for Remote Management
• RoHS compliant 6/6

1-2
Super AOC-A25G-b2S(M/B/G) Add-on Card User's Guide
1-3 Technical Specications
General
• Advanced I/O Module (AIOM) form factor
• Broadcom®BCM57414 25GbE controller
• Dual SFP28 ports
Networking Features
• Jumbo frames (up to 9.6 KB)
• IEEE 802.3x ow control
• IEEE 1588 protocol and Time Sync
• IEEE 802.3ad Link Aggregation
• Virtual LANs- 802.1q VLAN tagging
• Conguring Flow Acceleration
• PXE, UEFI, iSCSI remote boot
Stateless O󰀪oad Features
• TCP, UDP, and IP checksum o󰀪oads
• IPv4 and IPv6 o󰀪oads
• Large Send O󰀪oad (LSO)
• Receive Segment Coalescing (RSC)
• TCP Segmentation O󰀪oad (TSO)
• Large Receive O󰀪oad (LRO)
• Receive Side Scaling (RSS)

Chapter 1: Overview
1-3
• Transmit Side Scaling (TSS)
• Accelerate Received Flow Steering (RFS)
NIC Partitioning (NPAR)
• 16 Physical Functions
• QoS per partition
• Partitioning control via sideband communication
• Up to 64 MAC/VLAN lters per partition
• Per partition statistics support
• Stateless o󰀪oads conguration per partition
• VEB/VEPA support
Virtualization Features
• NetQueue, VMQueue, and Multiqueue
• SR-IOFV with up to 128 Virtual Functions (VFs)
• Network overlay: VXLAN, NVGRE, and Geneve
• Edge Virtual Bridging (EVB)
RDMA over Converged Ethernet (RoCE)
• RoCEv1 and RoCEv2
• Data Center Bridging with RoCE

1-4
Super AOC-A25G-b2S(M/B/G) Add-on Card User's Guide
Flow Processing Features
• Exact/Wildcard Match Flow Lookup
• VLAN insertion/deletion
• NAT/NAPT/Mirroring
Data Center Bridging
• Priority-based Flow Control (PFC; IEEE 802.1Qbb)
• Enhanced Transmission Selected (ETS; IEEE 802.1Qau)
• Quantized Congestion Notication (QCN; IEEE 802.1Qau)
• Data Center Bridging Capability eXchange (DCBX; IEEE 802.1Qaz)
• 8 tra󰀩c classes per port; fully DCB compliant per 802.1bb
Power Savings
• ACPI compliant power management
• PCI Express Active State Power Management (ASPM)
• Ultra-low-power mode
• Pass-through Energy E󰀩cient Ethernet (IEEE 802.3az-2010)
Power Consumption
• Maximum 7.7W
Operating Conditions
• Storage temperature: -40°C to 70°C (-40°F to 158°F)
• Storage humidity: 90% non-condensing relative humidity at 35°C

Chapter 1: Overview
1-5
Physical Dimensions
• Card PCB dimensions: 76mm x 115mm (W x D)
Note: This product is only sold as part of an integrated solution with
Supermicro server systems.
1-4 Available SKUs
SKUs Part Number Description
AOC-A25G-b2S BKT-0165L 2-port 25 Gigabit Ethernet Adapter with
a 1U height bracket
AOC-A25G-b2SM BKT-0166L 2-port 25 Gigabit Ethernet Adapter with
a 0.5U height bracket
AOC-A25G-b2SB BKT-0180L 2-port 25 Gigabit Ethernet Adapter with
a 0.5U height internal lock bracket (for
Blade system only)
AOC-A25G-b2SG BKT-0209L 2-port 25 Gigabit Ethernet Adapter with
a 0.5U height Narrow bracket (for Grand
Twin front IO system only)

Chapter 2: Hardware Components
2-1
Chapter 2
Hardware Components
2-1 Add-On Card Image and Layout
AOC-A25G-b2S Side View
AOC-A25G-b2S Front View

2-2
Super AOC-A25G-b2S(M/B/G) Add-on Card User's Guide
AOC-A25G-b2SM Side View
AOC-A25G-b2SM Front View

Chapter 2: Hardware Components
2-3
AOC-A25G-b2SG Side View
AOC-A25G-b2SB Side View

2-4
Super AOC-A25G-b2S(M/B/G) Add-on Card User's Guide
JPAUX1
Broadcom®
BCM57414
Controller
J1_SFP2
SFP2
J1_SFP1
SFP1
REV:1.02
AOC-A25G-b2S
DESIGNED IN USA
AOC-A25G-b2S Layout
3
1
2
4

Chapter 2: Hardware Components
2-5
2-2 Major Components
The following components are on the AOC-A25G-b2S(M/B/G).
AOC-A25G-b2S(M/B/G) Major Components
No Component Name Denition
1Broadcom®BCM57414 25GbE Controller
2J1-SFP1/SFP1 SFP28 Port 1
3J1-SFP2/SFP2 SFP28 Port 2
4JPAUX1 1-2: Enable AUX Power
3-4: Disable AUX Power (default)

2-6
Super AOC-A25G-b2S(M/B/G) Add-on Card User's Guide
2-3 SFP28 Ethernet Connections
SFP28 (SFP1/SFP2) Connectors
The AOC-A25G-b2S(M/B/G) has two network LAN (SFP28) ports. These LAN
ports support connection speeds up to 1Gbps. Plug the Direct Attached Copper
(DAC) cable into the SFP28 port for network connections.
Note: To make sure that the LAN port functions properly, be sure to use the
following cable specied by the manufacturer.
LED Color Denition
Link
(Left)
Amber 10 Gbps
Green 25 Gbps
Activity
(Right)
Green Flashing Activity
LAN LED
Each SFP28 connector has two LEDs. The LED on the left indicates link speeds,
and the LED on the right indicates the status of the activity of the connector. See
the table above for more information.
Link LED Activity LED

Chapter 2: Hardware Components
2-7
2-4 Jumper Settings
Explanation of Jumpers
To modify the operation of the motherboard, jumpers can be used to choose between
optional settings. Jumpers create shorts between two pins to change the function of
the connector. Pin 1 is identied with a square solder pad on the printed circuit board.
AOC JPAUX1 set
to Disabled
When system/MB goes into a standby mode
IPMI Support FailOver Support WoL Support
No No No
When system/MB is NOT in the standby mode
IPMI Support FailOver Support WoL Support
Yes Yes N/A
AOC JPAUX1 set
to Enabled
When system/MB goes into a standby mode
IPMI Support FailOver Support WoL Support
Yes Yes Yes
When system/MB is NOT in the standby mode
IPMI Support FailOver Support WoL Support
Yes Yes N/A
JPAUX1 for
Standby
Power
Function Notes
Disable = No
standby power
to AOC NIC
Disable jumper
to disconnect the
standby power
Default
Enable =
Standby power
to AOC NIC
Enable jumper to
connect standby
power to AOC NIC
WoL is supported on all four ports
but limited to platforms with su󰀩cient
airow when it is in standby mode
(S5 state). Please consult Supermicro
before enabling it.

2-8
Super AOC-A25G-b2S(M/B/G) Add-on Card User's Guide
2-5 Major Components of AIOM Module
The major components of the Supermicro®Advanced I/O Modules (AIOM) are the
card and bracket. Before a computer system can operate, all slots are required to
be populated. If an AIOM module is used, this means the bracket must be rmly
installed into the chassis. This will ensure that the card that is installed to the bracket
is seated securely in the motherboard connector. For instructions on how to install
and uninstall an AIOM module please refer to chapter 3.