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25 Gigabit Ethernet

An Ethernet standard at 25 gigabits per second (25 GbE). Approved in 2016, 25 GbE was developed by the 25G Ethernet Consortium and IEEE 802.3by task force, which also includes 50 GbE. The 25 and 50 GbE speeds are even divisions of 100 Gigabit Ethernet, which comprises four 25 Gbps streams. Therefore, migrating in the future from 25 or 50 to 100 GbE is expected to be more economical than going from 40 to 100 GbE. See 100 Gigabit Ethernet.



100 Gigabit Ethernet

An Ethernet standard that transmit at 100 gigabits per second (100 Gbps). Officially, the IEEE 802.3bm-2015 standard, which defines 100 Gigabit Ethernet (100 GbE) and also 40 Gigabit Ethernet (40 GbE) over fiber cables. The 40 Gbe is designed for use within the organization between servers and the Ethernet switch, while 100 GbE is geared to long-distance switch-to-switch transmission.

Multiple Lanes
For 100 GbE, the modulation scheme breaks 100 Gbps into four 25 Gbps data lanes by first splitting the 100 into two polarized streams, each of which is then modulated into two 25 Gbps streams. See 25 Gigabit Ethernet, Terabit Ethernet and Ethernet.


  Distance
    in
  Meters  Medium      Designation

    1     Copper       40GBASE-KR4
           Backplane  100GBASE-KR4

    7     Copper       40GBASE-CR4
                      100GBASE-CR10

  100-    Multimode    40GBASE-SR4
   125     Fiber      100GBASE-SR10

  10 km   Singlemode   40GBASE-LR4
           Fiber      100GBASE-LR10

 100 km   Singlemode  100GBASE-ER10
           Fiber





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Before/After Your Search Term
BeforeAfter
24/88.2256-bit
24/96256QAM
24-bit audio25GbE
24-bit color25GE
240 Hz27 MHz
240Hz2780
24p28.8
24x CD-ROM286
24x7286/12
25 GbE286/16

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