admin:bandwidth [~wiki]

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====== Bandwidth ======
The amount of data you can squeeze through a connection is often titled "bandwidth". You can test network bandwidth with [[:guide:iperf|iperf]].

===== Common real life connection speed =====
Here's a list of select link speeds in bit/s and byte/s for comparison. The table contains estimates of real life net data rates, not the theoretical maximum data rate.

Units:

  * b = bit
  * B = byte
  * 1Kb = 1000 bit
  * 1KB = 1000Byte
  * 1KiB[(many people incorrectly assume that a Kilobyte is 1024 Byte, instead that'd be a [[https://en.wikipedia.org/wiki/Kibibyte|Kibibyte]])] = 1kB = 1024 Byte.
  * 1MB/s = 1E6[(1E6 in scientific/engineering notation means 1·10<sup>6</sup> = 1 000 000)] byte per second

^ Technology ^ bit/s ^ byte/s |
| USB2 |  | 33MiB |
| USB3 |  | |
| GbE | | |
| 10 GbE | | |
| SMBv2 | | |
| SATA 6G | | |

===== Common applications =====
If the bandwidth needed is not symmetrical, ↓ means downstream (server→client) and ↑ means upstream (client→server). This is always per User.

^ Application ^ Protocol/setting ^ bit/s ^ Packets/s |
| VoIP | G.711 | 87.2Kb[(Source: [[https://www.cisco.com/c/en/us/support/docs/voice/voice-quality/7934-bwidth-consume.html|Cisco Docs "Voice Over IP - Per Call Bandwidth Consumption"]])] | |
| ::: | G.729 | 31.2Kb | |
| ::: | TeamSpeak (10 people) | ↓25.9Kb ↑233Kb[(Source: [[https://support.teamspeak.com/hc/en-us/articles/360002710657-How-much-bandwidth-does-TeamSpeak-require-|support.teamspeak.com]])] | |
| Netflix | SD Quality (480p) | |
| ::: | Full HD (1080p) | ↓5Mb | |
| ::: | Ultra HD (4K) | ↓25Mb | |

==== Gaming bandwidth ====
^ Platform ^ Game ^ bit/s ^ Packets/s |
| PS4 | Battlefield 4 | ↓150Kb[(Source: [[https://gobrolly.com/amount-data-bandwidth-required-video-gaming/|gobrolly.com – Data and Bandwidth Required For Video Gaming]])] | |
| PC | Counter-Strike: Global Offensive | | |