Individual router named after its deparment that

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individual router named after its deparment, that there is a Router F that is responsible for forwarding packets to the rest of the Internet, and that the routers are connected in the pattern A-B-C-F-D-E. Assume that Router F connects to its upstream router (i.e. its connection to the rest of the internet) via “Interface 0”, and that traffic local to a router’s subnet is sent via their own “Interface 0.” Design an efficient arrangement of subnet numbers and masks to assign to each de- partment. List the routing tables of nodes B and F (use the format of table 4.10 in the book). You should include a route with subnet number “default” and no subnet mask for all traffic that matches none of the more specific entries. How much larger can each subnet grow (in terms of nodes) in your scheme? What happens if a new, very large department (400 or more nodes) is added? What about several smaller departments (five departments of 40 nodes each)? You don’t need to list routing tables or subnet numbers, just explain from where in the address space you would allocate these subnets. 2
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