Summary

We have discussed the various parts of the IT network. We started with the common devices deployed in the IT network, discussed the hardware and software aspects of the devices and introduced Cisco IOS.

We also progressed to cover the functional blocks in the IT network and detailed the functions performed at each functional block, ending with highlighting the interdependencies between the various functional blocks.

Starting with the next chapter, we will delve deep into each functional block and discuss the technologies and protocols that are used in each functional block.

In the next chapter, we will discuss the various protocols, and technologies used within a building or a campus of the organization.