If we are speaking about all these networking devices that give us the ability to use networks, we must also say something about the biggest international company that produces most of networking devices, designs and establishes computer networks across the world – CISCO.
Cisco Internetwork Operating System and Juniper OS, what are they and all about these widely spread network device operating systems.
Cisco internetwork operating system has been confirmed as the world foremost networking infrastructure software. This software presents the perfect picture of the integration of modern technology. Cisco IOS is highly accommodating for hardware platform. This operating system is popular due to its functionality. At this time, bulk of active network systems such as small home, office router and world’s leading service provider’s networks system, all are using it in order to conduct different types of operations. You can say, Cisco Internetwork Operating System is the central and extensively influenced infrastructure software for the networking all over the world.
If you can easily understand how the network is working you will have more time to think how to make improvements on that system, and not spend all the energy on learning and getting to figure out the things that are already done. On the other side, this layered model will guarantee you that your new technology incorporated into some new protocol, or version of protocol, will be able to function and cooperate with all other protocols in the same or other layers. This is why we need The OSI network reference model.
External servers are often used to store security backups of network devices like Cisco or Juniper switches and routers. This backups include operation system images like Cisco IOS and Juniper JUNOS, and more often configuration files from devices.
When we want to configure some of the networking devices, we usually connect to the device with laptop, directly with console cable. This is the best way to set up the device for the first time, and it may be the only way. It’s because, first thing’s first, we need to setup the device to make it possible for us to communicate with other devices on the network. And then, when the router or the switch are ready to communicate, the best way to make all future changes is by doing it from a certain remote centralized location,by simply connecting to the devices using Telnet or SSH. This is because we don’t need to be literally in front of the device to configurate it; we can be on the other side of the network and remotely connect.