dido:public:ra:1.4_req:2_nonfunc:40_performance:04_nework
Differences
This shows you the differences between two versions of the page.
| Both sides previous revision Previous revision Next revision | Previous revision | ||
|
dido:public:ra:1.4_req:2_nonfunc:40_performance:04_nework [2021/08/09 11:55] murphy [Bandwidth] |
dido:public:ra:1.4_req:2_nonfunc:40_performance:04_nework [2021/08/17 13:38] (current) murphy |
||
|---|---|---|---|
| Line 7: | Line 7: | ||
| [[dido:public:ra:xapend:xapend.a_glossary:n:netperform]] captures the statistical metrics and the analytical review of a network. Collectively they reflect the network's Quality of Services. | [[dido:public:ra:xapend:xapend.a_glossary:n:netperform]] captures the statistical metrics and the analytical review of a network. Collectively they reflect the network's Quality of Services. | ||
| - | It is a qualitative and quantitative process that measures and defines the performance level of a given network. It guides a network administrator in the review, measure and improvement of network services. | + | It is a qualitative and quantitative process that measures and defines the [[dido:public:ra:xapend:xapend.a_glossary:p:performance|performance]] level of a given network. It guides a network administrator in the review, measure and improvement of network services. |
| There are two main ways to connect devices together: | There are two main ways to connect devices together: | ||
| Line 24: | Line 24: | ||
| [[dido:public:ra:1.4_req:2_nonfunc:40_performance:04_nework| Return to Top]] | [[dido:public:ra:1.4_req:2_nonfunc:40_performance:04_nework| Return to Top]] | ||
| - | Network speed is for the most part about acquiring the correctly sized physical [[dido:public:ra:xapend:xapend.a_glossary:n:netdev | Network Devices]] (i.e. [[dido:public:ra:xapend:xapend.a_glossary:m:modem]], [[dido:public:ra:xapend:xapend.a_glossary:r:router | Router]], [[dido:public:ra:xapend:xapend.a_glossary:s:switch | Switches]], [[dido:public:ra:xapend:xapend.a_glossary:n:netcabling]], etc.) to meet the demands of the system. However, there are restrictions that arise such as the need for wireless connections (i.e., WiFi, [[dido:public:ra:xapend:xapend.a_glossary:b:bluetooth]], [[dido:public:ra:xapend:xapend.a_glossary:z:zigbee]], [[dido:public:ra:xapend:xapend.a_glossary:i:infrared]] etc.), space and heat considerations (i.e., a big problems for planes, ships, labs, hospital rooms, etc.) or when the assets participating in the system are distributed and not under the control of a single source (i.e., blockchains, Distributed Ledger Technologies (DLT), supply chains, etc.). | + | Network speed is for the most part about acquiring the correctly sized physical [[dido:public:ra:xapend:xapend.a_glossary:n:netdev | Network Devices]] (i.e. [[dido:public:ra:xapend:xapend.a_glossary:m:modem]], [[dido:public:ra:xapend:xapend.a_glossary:r:router | Router]], [[dido:public:ra:xapend:xapend.a_glossary:s:switch | Switches]], [[dido:public:ra:xapend:xapend.a_glossary:n:netcabling]], etc.) to meet the demands of the system. However, there are restrictions that arise such as the need for wireless connections (i.e., WiFi, [[dido:public:ra:xapend:xapend.a_glossary:b:bluetooth]], [[dido:public:ra:xapend:xapend.a_glossary:z:zigbee]], [[dido:public:ra:xapend:xapend.a_glossary:i:infrared]] etc.), space and heat considerations (i.e., a big problems for planes, ships, labs, hospital rooms, etc.) or when the assets participating in the system are distributed and not under the control of a single source (i.e., blockchains, [[dido:public:ra:xapend:xapend.a_glossary:d:distributed_ledgers|Distributed Ledger]] Technologies (DLT), supply chains, etc.). |
| Most [[dido:public:ra:xapend:xapend.a_glossary:e:ethernet]] connections fall into the following categories: [[dido:public:ra:xapend:xapend.a_glossary:w:wired]] and [[dido:public:ra:xapend:xapend.a_glossary:w:wireless]] | Most [[dido:public:ra:xapend:xapend.a_glossary:e:ethernet]] connections fall into the following categories: [[dido:public:ra:xapend:xapend.a_glossary:w:wired]] and [[dido:public:ra:xapend:xapend.a_glossary:w:wireless]] | ||
| Line 72: | Line 72: | ||
| A bit represents a single binary digit either '0' or '1'. The '0' or '1' generally represent yes/no, true/false, on/off, or up/down/ It does not necessarily equate a '0' with false and a '1' with true. When transmitted over a network, the data is sent as a stream of bits (not bytes). A byte is generally used to signify a unit of memory or storage (i.e., RAM or ROM) that usually is eights bits long (wide) and is the smallest number of bits used to represent a character in the original [[dido:public:ra:xapend:xapend.a_glossary:a:ascii|ASCII]] character set used by most most computers. | A bit represents a single binary digit either '0' or '1'. The '0' or '1' generally represent yes/no, true/false, on/off, or up/down/ It does not necessarily equate a '0' with false and a '1' with true. When transmitted over a network, the data is sent as a stream of bits (not bytes). A byte is generally used to signify a unit of memory or storage (i.e., RAM or ROM) that usually is eights bits long (wide) and is the smallest number of bits used to represent a character in the original [[dido:public:ra:xapend:xapend.a_glossary:a:ascii|ASCII]] character set used by most most computers. | ||
| - | Bandwidth is measured as bits per second and is used as a denominator of bits (i.e., kilobits, megabits). When bandwidth is used to describe a network connection (i.e., switch, server or router), it is generally in megabits, however, when it is used to describe the data flowing into the connection then bandwidth referred to as traffic and could be measured in either megabits per second (Mb/s or Mbps) or megabytes per second (MB/s or MBps). Although the nomencalture is subtle, it is important to be aware of the difference. An inadvertent misunderstanding could result in a error of magnitude 8 (i.e., 1 byte = 8 bits). | + | Bandwidth is measured as bits per second and is used as a denominator of bits (i.e., kilobits, megabits). When bandwidth is used to describe a network connection (i.e., switch, [[dido:public:ra:xapend:xapend.a_glossary:s:server|server]] or router), it is generally in megabits, however, when it is used to describe the data flowing into the connection then bandwidth referred to as traffic and could be measured in either megabits per second (Mb/s or Mbps) or megabytes per second (MB/s or MBps). Although the nomencalture is subtle, it is important to be aware of the difference. An inadvertent misunderstanding could result in a error of magnitude 8 (i.e., 1 byte = 8 bits). |
| Since the megabytes figure will be larger than the megabits figure (equation to follow shortly) most industry service providers like to give a total transfer based on this figure – however most bandwidth providers use megabits. | Since the megabytes figure will be larger than the megabits figure (equation to follow shortly) most industry service providers like to give a total transfer based on this figure – however most bandwidth providers use megabits. | ||
dido/public/ra/1.4_req/2_nonfunc/40_performance/04_nework.1628524524.txt.gz · Last modified: 2021/08/09 11:55 by murphy
