The NVIDIA MMA1Z00-NS400 is an InfiniBand and Ethernet 400Gb/s, Single-port, QSFP112, SR4 multimode parallel transceiver using a single, 4-channel MPO-12/APC optical connector. The Short Reach 4-channel (SR4) design uses 100G-PAM4 modulation and has a maximum fiber reach of 50-meters using OM4 multimode fiber and assumes two optical patch panels in the b. It has identical design and internals as the OSFP version, only with different connector shells.
The transceiver firmware supports both InfiniBand and Ethernet and is automatically enabled depending on the protocol of the switch attached to. The QSFP112 shell has a flat-top and utilizes the riding heat sink (cooling fins) on the ConnectX-7 or BlueField-3 connector cage. The small bumps near the pull tab provide additional cooling and remains outside the host connector cage.400G OSFP SR4
800G OSFP SR8
400G、800G OSFP module对比表
B company module A company module module
Up to 30m reach on OM3 and 50m reach
on OM4 with FEC
Up to 30m reach on OM3 and 50m reach
on OM4 with FEC
Up to 60m reach on OM3
and 100m reach
on OM4 with FEC
传输距离
120us+ 128us+ 118us
IB PING平
均延时性
能
396Gbps+ 392Gbps+ 395Gbps+ 平均速率
400G:12w Max
800G:16w Max
400G:10w Max
800G:15.5w Max
400G:8.5w MAX
800G:15w Max 功耗
Marvell方案DSP,可靠性、稳定性较好 非全博通方案,可靠性、稳定性差一些
全博通方案
DSP+VCSEL+PD,业界最
NVIDIA适配方案
方案
IB 光模块及线缆测试报告
1. 测试环境
1.1. 测试拓
1.2. 测试对象
1.3. 测试设备
测试方法 数 量 规格 数 量 规格 品牌 类型
逐一测试 1 800G 2 400G IB 光模 块 清华
品牌 SN/NU System image GUID IB 网卡 Server
清华 N412W0045 0x58a2e1030022e020 Mlx5_4 Server62
清华 N412W0057 0x58a2e1030022c298 Mlx5_4 Server63
1.4. 测试内容
1、光模块链接状态;
2、光模块所在端口 Ib_read_bw、ib_write_bw、ib_send_bw 速率测试
3、IB 长 ping 测试100 万个数据包
1.5. 测试环境状态记录
1.5.1. Server62 状态记如下
1.5.2. Server63 状态记录
2. 测试结果汇总
2.1. 测试数据汇总
2.2. 测试结论:
IB 光模块接入服务器状态正常,平均速率约 396Gb/S,平均时延0.118ms;
3. 测试过程记录
3.1. Mlx5_4 口读写速率测试
3.1.1. 数据读取速率如下
ibping
平均时延
ibping
丢包率
ib_send_bw
平均速率
ib_write_bw
平均速率
ib_read_bw
平均速率
Server63 品牌
光模块
Server62
光模块
IB
网卡
0.118ms 0.00% 396.54Gb/s 394.99Gb/s 396.55Gb/s 清华 N412W0057 N412W0045 Mlx5_4
3.1.2. 数据写入速率如下
3.1.3. 数据发送测试如下
3.1.4. 长 ping 测如下
产品适用于
NVIDIA A100 Tensor Core GPU
NVIDIA H100 Tensor Core GPU
NVIDIA英伟达 MMA4Z00-NS 800Gb/s速率 Twin-port SR8 Transceiver收发器 OSFP 2x400G Multimode多模 50m
The NVIDIA MMA4Z00-NS is an InfiniBand and Ethernet 800Gb/s 2x400Gb/s Twin-port OSFP, DR8 multimode, parallel, 8-channel transceiver using two, 4-channel MPO-12/APC optical connectors at 400Gb/s each. The parallel multimode, short reach 8-channel (SR8) uses 100G-PAM4 modulation and has a maximum fiber reach of 50-meters using 8 multimode fibers. The 50-meter length assumes two optical patch panels in the b.
The Twin-port SR8 transceiver is a key NVIDIA innovation with two internal transceiver engines enabling 64-ports of 400Gb/s in a 32-OSFP cage Quantum-2 switch. Spectrum-4 switches have 32 or 64 cages and enable 64-128 400G ports. The transceiver firmware supports both InfiniBand and Ethernet and is automatically enabled based on the switch protocol.
The Quantum-2 and Spectrum-4 switches require finned-top OSFP shells for extra transceiver cooling. The main application for MMA4Z00-NS is bing two switches together with up to 50-meter transceivers (marked blue).A flat-top version offered for liquid-cooled and DGX H100 Cedar7 systems bs.
The transceiver combinations guarantee optimal operation in NVIDIA end-to-end systems and customer networking solutions. Rigorous production testing ensures the best out-of-the-box installation experience, perbance, and durability.
The NVIDIA MMA4Z00-NS400 is an InfiniBand (IB) and Ethernet (ETH) 400Gb/s, Single-port, OSFP, SR4 multimode parallel transceiver using a single, 4-channel MPO-12/APC optical connector. The Short Reach 4-channel (SR4) design uses 100G-PAM4 modulation and has a maximum fiber reach of 50-meters using OM4 multimode fiber and assumes two optical patch panels in the b. It has identical design and internals as the QSFP112 version, only with different connector shells.
The transceiver firmware supports both InfiniBand and Ethernet and is automatically enabled depending on the protocol of the switch attached to. The OSFP shell has a flat-top and utilizes the riding heat sink (cooling fins) on the ConnectX-7 connector cage.When bed to 1:2 splitter fiber cable split end has only 2 channels and will activate only 2-channels in the 400G transceiver automatically creating a 200G speed and reducing power.
Multimode optics is denoted by a tan-colored pull tab and aqua-colored optical fiber. Green plastic shell on the MPO-12/APC optical connector denotes Angled Polish Connector and is not compatible with Ultra-flat Polished Connectors (UPC) (aqua colored).
NVIDIA’s Single-port and Twin-port transceiver combinations guarantee optimal operation in NVIDIA end-to-end systems and customer networking solutions. Rigorous production testing ensures the best out-of-the-box installation experience, perbance, and durability.
Flat Top Transceiver
When bed to 1:2 splitter fiber cable split end has only 2 channels and will activate only 2-channels in the 400G transceiver automatically creating a 200G speed and reducing power.
Multimode optics is denoted by a tan-colored pull tab and aqua-colored optical fiber. Green plastic shell on the MPO-12/APC optical connector denotes Angled Polish Connector (APC) and is not compatible with the aqua colored Ultra-flat Polished Connectors (UPC).
NVIDIA’s Single-port and Twin-port transceiver combinations guarantee optimal operation in NVIDIA end-to-end InfiniBand systems and a rigorous production tested to ensure the best out-of-the-box installation experience, perbance, and durability.
Images are for illustration purposes only. Product labels, colors, and lengths may vary.
Maximum reach:
Max reach: