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What is a Router ? | IT NETWORKS

What is a router?



Routers are responsible for transmitting packets from one end host on the internet, maybe a laptop to and from other end-hosts that are connected to the internet like a web server that we are accessing.

Routers are not computers that you might recognize, routers are specialized pieces of
computer hardware that is built to do one task over and over and over again and that determines where a packet should go.

 If the router only has two connections then when a packet comes in on one connection, it has to go out on the other and to some degree, there's no real point to have a router there at all same thing with the other direction because a router is on a destination for traffic it's just there to route traffic
to move it towards a destination that's an important distinction between end hosts and routers.

An end host can be a PC or a server...

Routers typically don't initiate that much traffic, they can initiate a little bit maybe using ICMP messages which are based on the Internet Control Message Protocol, to inform others on the internet about things that are happening.

Routers don't serve files to web users or do not provide a certain application they are conceived to route traffic.

what is a router, what does a router do, routers, cisco router, huawei router, juniper router, layer 3, network, router configuration


 Routers direct packets toward their destination once a router has one, two, three or more links then it starts to have a choice to make base on several conditions that are related to certain rules we call PROTOCOLs or some certain techniques to route traffic.

If a router receives packets faster than it can handle them, it can store them temporarily in its memory to try to process them, a very short time later, but if enough of those packets build up it has to start dropping them.

All routers are communicating with each other using the IP protocol and they do the Best-effort packet delivery trying to move the packet to its destination.

Here are some router models:

Cisco

what is a router, what does a router do, routers, cisco router, huawei router, juniper router, layer 3, network, router configuration
what is a router, what does a router do, routers, cisco router, huawei router, juniper router, layer 3, network, router configuration

Learn more:

In Programing

How to install PYTHON 3.8.0 :
https://itnetworks2020.blogspot.com/2019/12/1-programming-with-python-installing.html

In Security

Endpoint introduction :
https://itnetworks2020.blogspot.com/2019/10/endpoints-introduction.html

Firewalls:
https://itnetworks2020.blogspot.com/2019/10/firewalls.html

Security Email Gateways:
https://itnetworks2020.blogspot.com/2019/10/secure-email-gateway.html

CyberSecurity Evolution : UnKnown Threats:
https://itnetworks2020.blogspot.com/2019/10/cybersecurity-evolution-unknown-threats.html

CyberSecurity Evolution : Known Threats
https://itnetworks2020.blogspot.com/2019/10/cybersecurity-evolution-known-threats.html

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