By now we know that the network address must be able to be identified for a data packet to be routable to its network destination network via routers. For IP, we use the subnet mask for filtering the network portion of the address from the host portion of the address.

Remember, the role of the Network Layer is to get the data packet to the right network, but we need the Data Link Layer for delivering the data to the right host on a specific broadcast domain.

Assignment. Solve a common networking problem by looking for a discovery and solution combination that refers to the OSI model and its seven layers ( Application, Presentation, Session, Transport, Network, Data Link, and Physical).

Problem to Solve: You just sent a print job over your network to a network printer. After a long period of time and multiple attempts to print still no document. Starting with the Physical layer of the OSI model, explain how in a paragraph for each OSI layer and in networking and computing terms (ping, arp, etc) how you will troubleshoot this problem. Present in a 3-column table format. Column 1 will list the OSI layer, column 2 will include any network commands that you might use ( Linux or Window commands are both fine), and column 3 will be the paragraph of the steps you took at that layer.For example, at what layer would you address Wiring or cabling issues, Blocked or damaged ports, etc.. etc.