So hoping you read this blog Networking Devices we will continue with the rest . If not recommended for the context else read this you will get the idea of how it works.
So as we know how the devices connect with each other on the devices level which is the physical level let’s understand what are the steps taken to keep this networks up and running Ready-to-use.
Ok we know that routers are used to direct the data packets from your computer to your friends over the internet which is a open connection everyone having a internet connection device can access it , Which means that the signals you are sending is open to everyone which means your data can be interpreted and altered this is a type of network attack which can occur if a third device except your friend’s device knows your IP address the packets can be interpreted and altered so how it is prevented, for that there exists a firewall for each of the network devices including your and your friend’s and the routers which checks on with hop(router transferring data packets from one network or switch to another to reach the destination) these firewalls check and verify each of the data packets HEADERS they don’t check the data only headers and check the source and destination IP of the packet and for each it checks the hop where the data came from and is it a valid network to pass through if not it blocks that specific network from accessing other packets so whenever other data packets transfer they don’t travel through that route also when some data packets are send to your computer they pass through the firewall to check the integrity which is if the data is safe to load on the device , These firewalls in the latest(2026) are weak alone so we use hooks like TLS and SSL(nowadays) which secures the data transfers maintaining the integrity and confidentiality to specific user having the access and that’s how firewall come in hand for network securing you data and your computer from getting any malware .
But how do they handle this much network and how does it happens that it doesn't lag the network how is it so fast even with so many routes to pass through how can you read this blog upon clicking the link or probably the post on this website that’s where load balancers come in these balancers divide and pass multiple requests into diffrent routers which then directs them to there networks. for example: let say you are browsing multiple websites at once like 100 tabs (not possible but just for an example) and you are sending like 30-50 requests from your network to other servers or devices these is where network load balancers come in they receive your requests divide the requests and direct it to different routers each of them vary one can be slow one can be fast and one can fail (these states a request can go into) these network load balancers work is to divide the network request into different routers or switches which decreases the load from a single router or switch significantly so that it can handle load of networks and work efficiently
And that’s how Firewalls and Load balancers come in hand with the network so that you can enjoy your online services , there’s a lot more to know about this network but this is my understanding of how networking works.
Top comments (0)