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jumbo frame : ウィキペディア英語版
jumbo frame

In computer networking, jumbo frames are Ethernet frames with more than 1500 bytes of payload. Conventionally, jumbo frames can carry up to 9000 bytes of payload, but variations exist and some care must be taken using the term. Many Gigabit Ethernet switches and Gigabit Ethernet network interface cards can support jumbo frames. Some Fast Ethernet switches and Fast Ethernet network interface cards can also support jumbo frames. Most national research and education networks (such as Internet2, National LambdaRail, ESnet, GÉANT and AARNet) support jumbo frames, but most commercial Internet service providers do not.
==Inception==
Each received Ethernet frame requires that the network hardware and software process it. Increasing the frame size makes a certain large amount of data transferable with less effort, reducing CPU utilization (mostly due to interrupt reduction) and increasing throughput by reducing the number of frames needing processing and reducing the total overhead byte count of all the frames sent.
Jumbo frames gained initial prominence when Alteon WebSystems introduced them in their ACEnic Gigabit Ethernet adapters.
Many other vendors also adopted the size; however, jumbo frames did not become part of the official IEEE 802.3 Ethernet standard.〔


抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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