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25G Ethernet may become the new trend of the future network
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25G Ethernet may become the new trend of the future network

Views: 0     Author: Site Editor     Publish Time: 2022-12-01      Origin: Site

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16Port GPON OLT with L3 management

With the increasing demand for bandwidth in the data center, the network speed is developing towards a higher rate, which will inevitably lead to the need for network upgrading. There are two upgrade paths from 10G to 100G, namely 10G-25G-100G and 10G-40G-100G. End users seem to prefer 25G. Why? Now let's talk with you.

All this can be said from the rise of 25 Ethernet. TOR switches in data centers have generally switched to 10G. With the development of virtualization and cloud computing, IEEE has approved 40G and 100G standards to meet the needs of higher bandwidth. However, switching the TOR switch of the data center to 40G requires high costs and will cause some power consumption. It is difficult and costly to directly deploy 100G.

Therefore, based on the IEEE 100GbE standard, IEEE 802.3 has formulated a new 25G Ethernet standard. A single channel can achieve 25Gbps speed, and 100G transmission can be achieved through 4 * 25Gbps, which reduces the upgrade cost to a certain extent and brings convenience to the upgrade of the data center.

Common interconnection products of 25G Ethernet include 25G SFP28 optical modules, AOC active optical cables and DAC high-speed cables. The 25G SFP28 optical module has a variety of models with different specifications, such as the transmission distance of the 25G multimode optical module is 100m, and the single-mode optical module is 10KM-40KM. In addition, 25G DAC and 25G AOC are mainly used for the connection between switches in the rack.

25G Ethernet can make up for the shortage of 10G Ethernet bandwidth and the high cost of 40G Ethernet. 25G Ethernet has excellent switch I/O performance and structure capability, and its speed is 2.5 times that of 10G, which can increase the switch port density and scalability; Secondly, compared with 40G, capital expenditure and operating expenditure can be reduced by reducing the number of switches, power supplies, cooling and cabling equipment; In addition, the 25G standard is established on the 100G standard, and 100G can be realized through four 25Gbps channels to reduce switch costs.

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