niedziela,
Przepustowość sieci komputerowych
Przepustowość to maksymalna ilość informacji, która może być transmitowana w jednostce czasu poprzez kanał komunikacyjny. Jest ona mierzona w bitach na sekundę (b/s, bps, bits per second), czasami także w bajtach na sekundę (B/s lub Bps). Przy dużej przepustowości najczęściej stosowane są prefiksy, zarówno dziesiętne (np. k = 1000), jak i binarne (np. K = 1024). W poniższej tabeli znalazły się określone standardami teoretycznie maksymalne wartości.
| Standard | Przepustowość | Rok | |
|---|---|---|---|
| Reflective memory or RFM2 (1.25 µs latency) | 2 Gbit/s | 170 MB/s | 2017 |
| Infiniband HDR 1× | 50 Gbit/s | 6.250 GB/s | 2017 |
| Infiniband HDR 4× | 200 Gbit/s | 25 GB/s | 2017 |
| 200 Gigabit Ethernet (200GBASE-X) | 200 Gbit/s | 25 GB/s | 2017 |
| 400 Gigabit Ethernet (400GBASE-X) | 400 Gbit/s | 50 GB/s | 2017 |
| Infiniband HDR 12× | 600 Gbit/s | 75 GB/s | 2017 |
| 2.5 Gigabit Ethernet (2.5GBASE-T) | 2.5 Gbit/s | 312.5 MB/s | 2016 |
| 5 Gigabit Ethernet (5GBASE-T) | 5 Gbit/s | 625 MB/s | 2016 |
| RapidIO Gen4 1× | 24.63 Gbit/s | 3.079 GB/s | 2016 |
| 25 Gigabit Ethernet (25GBASE-X) | 25 Gbit/s | 3.125 GB/s | 2016 |
| Omni-Path | 100 Gbit/s | 12.5 GB/s | 2015 |
| Infiniband EDR 1× | 25 Gbit/s | 3.125 GB/s | 2014 |
| Infiniband EDR 4× | 100 Gbit/s | 12.5 GB/s | 2014 |
| NUMAlink 7 | 159.52 Gbit/s | 19.94 GB/s | 2014 |
| Infiniband EDR 12× | 300 Gbit/s | 37.5 GB/s | 2014 |
| NUMAlink 6 | 53.6 Gbit/s | 6.7 GB/s | 2012 |
| Infiniband FDR 1× | 13.64 Gbit/s | 1.7 GB/s | 2011 |
| Infiniband FDR 4× | 54.54 Gbit/s | 6.82 GB/s | 2011 |
| Infiniband FDR 12× | 163.64 Gbit/s | 20.45 GB/s | 2011 |
| IEEE 1901 | 1000 Mbit/s | 125 MB/s | 2010 |
| 40 Gigabit Ethernet (40GBASE-X) 4× | 40 Gbit/s | 5 GB/s | 2010 |
| 100 Gigabit Ethernet (100GBASE-X) 10×/4× | 100 Gbit/s | 12.5 GB/s | 2010/2018 |
| RapidIO Gen2 1× | 5 Gbit/s | 625 MB/s | 2008 |
| RapidIO Gen2 2x | 10 Gbit/s | 1.25 GB/s | 2008 |
| RapidIO Gen2 4x | 20 Gbit/s | 2.5 GB/s | 2008 |
| RapidIO Gen2 8x | 40 Gbit/s | 5 GB/s | 2008 |
| RapidIO Gen2 16× | 80 Gbit/s | 10 GB/s | 2008 |
| Infiniband QDR 1× | 8 Gbit/s | 1 GB/s | 2007 |
| Infiniband QDR 4× | 32 Gbit/s | 4 GB/s | 2007 |
| Infiniband QDR 12× | 96 Gbit/s | 12 GB/s | 2007 |
| HomePlug AV | 200 Mbit/s | 25 MB/s | 2005 |
| Infiniband DDR 1× | 4 Gbit/s | 500 MB/s | 2005 |
| Infiniband DDR 4× | 16 Gbit/s | 2 GB/s | 2005 |
| Infiniband DDR 12× | 48 Gbit/s | 6 GB/s | 2005 |
| NUMAlink 3 | 12.8 Gbit/s | 1.6 GB/s | 2004 |
| NUMAlink 4 | 25.6 Gbit/s | 3.2 GB/s | 2004 |
| 10 Gigabit Ethernet (10GBASE-X) | 10 Gbit/s | 1.25 GB/s | 2002-2006 |
| Token Ring IEEE 802.5v | 1 Gbit/s | 125 MB/s | 2001 |
| Infiniband SDR 1× | 2 Gbit/s | 250 MB/s | 2001 |
| RapidIO Gen1 1× | 2.5 Gbit/s | 312.5 MB/s | 2000 |
| Gigabit Ethernet (1000BASE-X) | 1 Gbit/s | 125 MB/s | 1998 |
| 100VG | 100 Mbit/s | 12.5 MB/s | 1995 |
| Fast Ethernet (100BASE-X) | 100 Mbit/s | 12.5 MB/s | 1995 |
| FireWire (IEEE 1394) 400 | 400 Mbit/s | 50 MB/s | 1995 |
| TCNS | 100 Mbit/s | 12.5 MB/s | 1993? |
| ARCnet Plus | 20 Mbit/s | 2.5 MB/s | 1992 |
| Token Ring (Later) | 16 Mbit/s | 2 MB/s | 1989 |
| LocalTalk | 230 kbit/s | 28.8 kB/s | 1988 |
| IBM PC Network | 2 Mbit/s | 250 kB/s | 1985 |
| Token Ring (Original) | 4 Mbit/s | 500 kB/s | 1985 |
| Econet | 800 kbit/s | 100 kB/s | 1981 |
| Omninet | 1 Mbit/s | 125 kB/s | 1980 |
| Ethernet (10BASE-X) | 10 Mbit/s | 1.25 MB/s | 1980 (1985 IEEE Standard) |
| ARCNET (Standard) | 2.5 Mbit/s | 312.5 kB/s | 1977 |
| Chaosnet (Original) | 4 Mbit/s | 3.0 Mbit/s | 1971 |
| Token Ring IEEE 802.5t | 100 Mbit/s | 12.5 MB/s | |
| FDDI | 100 Mbit/s | 12.5 MB/s | |
| MoCA 1.0 | 100 Mbit/s | 12.5 MB/s | |
| MoCA 1.1 | 175 Mbit/s | 21.875 MB/s | |
| HIPPI | 800 Mbit/s | 100 MB/s | |
| Myrinet 2000 | 2 Gbit/s | 250 MB/s | |
| Quadrics QsNetI | 3.6 Gbit/s | 450 MB/s | |
| Infiniband SDR 4× | 8 Gbit/s | 1 GB/s | |
| Quadrics QsNetII | 8 Gbit/s | 1 GB/s | |
| RapidIO Gen1 4x | 10 Gbit/s | 1.25 GB/s | |
| Myri 10G | 10 Gbit/s | 1.25 GB/s | |
| Infiniband FDR-10 1× | 10.31 Gbit/s | 1.29 GB/s | |
| Scalable Coherent Interface (SCI) Dual Channel SCI, x8 PCIe | 20 Gbit/s | 2.5 GB/s | |
| Infiniband SDR 12× | 24 Gbit/s | 3 GB/s | |
| Infiniband FDR-10 4× | 41.25 Gbit/s | 5.16 GB/s | |
| Infiniband FDR-10 12× | 123.75 Gbit/s | 15.47 GB/s | |
