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dido:public:ra:xapend:xapend.a_glossary:s:switch [2020/11/14 15:05] nick |
dido:public:ra:xapend:xapend.a_glossary:s:switch [2021/10/04 02:37] (current) 51.222.253.18 ↷ Links adapted because of a move operation |
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| ===== Switch ===== | ===== Switch ===== | ||
| - | [[dido:public:ra:xapend:xapend.a_glossary | Return to Glossary ]] | + | [[dido:public:ra:xapend:xapend.a_glossary:start| Return to Glossary ]] |
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| Using switches improves network efficiency over hubs or routers because of the virtual circuit capability. Switches also improve [[dido:public:ra:xapend:xapend.a_glossary:n:networksecurity|network security]] because the virtual circuits are more difficult to examine with network monitors. You can think of a switch as a device that has some of the best capabilities of routers and hubs combined. A switch can work at either the [[dido:public:ra:xapend:xapend.a_glossary:d:datalinklayer]] or the [[dido:public:ra:xapend:xapend.a_glossary:n:netlayer|Network layer]] of the [[dido:public:ra:xapend:xapend.a_glossary:o:osi]]. A multilayer switch is one that can operate at both layers, which means that it can operate as both a switch and a router. A multilayer switch is a high-[[dido:public:ra:xapend:xapend.a_glossary:p:performance|performance]] device that supports the same routing protocols as [[dido:public:ra:xapend:xapend.a_glossary:r:router|routers]]. | Using switches improves network efficiency over hubs or routers because of the virtual circuit capability. Switches also improve [[dido:public:ra:xapend:xapend.a_glossary:n:networksecurity|network security]] because the virtual circuits are more difficult to examine with network monitors. You can think of a switch as a device that has some of the best capabilities of routers and hubs combined. A switch can work at either the [[dido:public:ra:xapend:xapend.a_glossary:d:datalinklayer]] or the [[dido:public:ra:xapend:xapend.a_glossary:n:netlayer|Network layer]] of the [[dido:public:ra:xapend:xapend.a_glossary:o:osi]]. A multilayer switch is one that can operate at both layers, which means that it can operate as both a switch and a router. A multilayer switch is a high-[[dido:public:ra:xapend:xapend.a_glossary:p:performance|performance]] device that supports the same routing protocols as [[dido:public:ra:xapend:xapend.a_glossary:r:router|routers]]. | ||
| - | Switches can be subject to [[dido:public:ra:xapend:xapend.a_glossary:d:ddos]] attacks; flood guards are used to prevent malicious traffic from bringing the [[dido:public:ra:xapend:xapend.a_glossary:s:switch]] to a halt. Switch [[dido:public:ra:xapend:xapend.a_glossary:p:port | port]] security is important so be sure to secure switches: Disable all unused ports and use DHCP snooping, ARP inspection and MAC address filtering. | + | Switches can be subject to [[dido:public:ra:xapend:xapend.a_glossary:d:ddos]] attacks; flood guards are used to prevent malicious traffic from bringing the [[dido:public:ra:xapend:xapend.a_glossary:s:switch]] to a halt. Switch [[dido:public:ra:xapend:xapend.a_glossary:p:port | port]] security is important so be sure to secure switches: Disable all unused ports and use [[dido:public:ra:xapend:xapend.a_glossary:d:dhcp]] snooping, [[dido:public:ra:xapend:xapend.a_glossary:a:arpspoof]] and MAC address filtering. |
| Source: [[https://blog.netwrix.com/2019/01/08/network-devices-explained/ ]] | Source: [[https://blog.netwrix.com/2019/01/08/network-devices-explained/ ]] | ||