
Traditional network infrastructure cannot meet the needs of data centers to handle large amounts of data, therefore, more and more 10G data centers are upgrading their 10G networks by deploying 40G network solutions.
Why do we need a 40G data center solution?
In the past few years, the increasing data traffic has made 10G/25G Ethernet networks unable to meet the needs of data centers for larger bandwidth and faster data transmission. The 40G data center solution combines existing Ethernet technology and interfaces with new technologies, which can not only improve data transmission speed but also solve data center problems more quickly. With the gradual maturity of 40G Ethernet technology, more and more users are choosing 40G network solutions to deploy their data centers.
Analysis of 40G Data Center Solution
The 40G data center solution is an ideal choice for long-distance transmission and switch interconnection, suitable for data centers that require high bandwidth and low latency transmission, especially those with large virtualization devices.
In a typical 40G data center solution, the overall switching capacity of a 40G Ethernet switch is higher than that of a 10G switch, and it can be used as a aggregation layer switch in the data center architecture (as shown in the figure below) to aggregate 10G switch data; As an access layer switch, the 10G switch is connected to a rack mounted server through a 10G SFP+ optical transceiver.
In a typical 40G data center solution architecture, we can utilize 10G SFP+ optical transceivers, 40G QSFP+ optical transceivers, and cabling systems to achieve data transmission. As shown in the following figure:

40G Data Center Solution Product Matching
If the data center plans to upgrade from a 10G network to a 40G network, the following products are essential.
The 40G QSFP+optical transceiver has four independent 10G data channels to support a total bandwidth of 40Gbps, and has been widely used in 40G direct network, 40G-4x10G branch network, data center aggregation and backplane applications, data center switch and router interconnection. There are currently various models of 40G optical transceivers on the market, such as 40GBASE-SR4, 40GBASE-LR4, 40GBASE-ER4, 40GBASE-CSR4, 40GBASE-PLRL4, etc.
40G Ethernet switch
40G Ethernet switches are typically equipped with SFP+, SFP28, QSFP+, and QSFP28 mixed ports, and are typically used as core/aggregation layer switches for data center applications. The switching capacity of a 40G Ethernet switch depends on the total number of ports and the power of the switch chip itself, and the overall switching capacity is higher than that of a 10G switch.
MTP ®/ MPO optical fiber
MTP ®/ The MPO fiber optic jumper consists of an MTP/MPO connector and fiber optic, MTP ®/ MPO connectors are divided into two types: female (without pins) and male (with pins), which greatly increase fiber density and save rack space in their applications. Therefore, MTP ®/ MPO fiber optic patch cords are very suitable for 40G/100G data center cabling and future network expansion upgrades.
OM1/OM2/OM3/OM4/OM5 multimode fiber optic patch cord
OM1/OM2/OM3/OM4/OM5 multimode fiber optic patch cords have different transmission distance and data rate capabilities, and can be used for high-speed network installation, making them a common choice for gigabit/10 Gigabit LAN and data center applications.
With the increasing demand for network applications and traffic, more and more data centers are evolving from old layouts to new layouts, upgrading from 10G networks to 40G or even 100G networks. The 40G data center solution is an ideal choice for long-distance transmission and switch interconnection, widely used in large enterprises and data centers that require high bandwidth and low latency transmission.




