Case Project 6-2 You’re the head network administrator for a large manufacturing

Question

Case Project 6-2

You’re the head network administrator for a large manufacturing enterprise that’s completing its support for IPv6 address of 2001:DB8:FAB /48 and want network administrators to be able to subnet their networks however they see fit. You also want to maintain a reserve of address spaces for a possible 6 to 10 additional locations in the future. Each network administrator should be able to construct at least 200 subnets from the addresses you supply and each location should have the same amount of available address space. What Ipv6 addresses should you assign to each location? When constructing your answer, list each location as Location 1, Location 2, and so forth.

Explanation / Answer

integer instructions 30% of total instructions is (46 billion*30)/100= 13.8 billion

machine take 257 ps for each integer instruction to execute = 0.257 ns

for 13.8 billion integer instructions time require = 13.8 billion * .257 = 3.54 billion nano seconds = 3.54 sec

floating point instructions 50 % of total is ( 46 billion * 50 )/100 =23 billion

machine take 683 ps for each floating point instruction to execute = 0.683 ns

for 23 billion floating point instructions time require = 23 billion * 0.683= 15.7 billion nano seconds = 15.7 seconds

memory access instructons 20 % of total is (46 billion * 20)/100= 10.2 billion

and each memory access instruction takes 9ns

10.2 billion memory access instructions takes 10.2 * 9 ns = 91.8 billion ns = 91.8 sec

for whole program to complete time require is (3.54 + 15.7 +91.8 )sec =111.04 sec

Overclocking is the task of increasing a cpu’s clock rate, running it at a higher speed than it was designed to run.

but over clocking can improve the risk of heat produced , in our case if we over clock CPU ,

over clocking improves speed by assume 1.5 ghz (1.5 billion instructions per second ) is processor speed then by over clocking it improves 0.5 billion instructions per second speed .

for 46 billion instructions to complete it require (46 * 2 )/1.5 = 61 sec means within half of the time it completes

but it depends on processor speed and factor of over clocking.

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