Help? I am lost
- Thread starter Me1990
- Start date
everlost
Honorable
- Mar 8, 2013
- 167
- 0
- 10,710
routers/switches/hubs can have several lights. each port would have atleast one link light. this tells you the cable is connected to somthing at the other end. it can also indicate link speed/bandwidth (10/100/1000 base T)
then there is an activity light, that tells you that the 2 devices are exchanging information. the devices can be routers, switches, hubs, computers, cameras, or anything else that wants the internet.
now lets talk trains.
if every device is a train station, people would be the data. you want to get from place to place, so you board a train. a larger train would have more cars to move more people (bandwidth). a faster train with fewer stops will get you there sooner with out interution (latiency).
but you are at home (PC) and want to get to work (www.google.com). there will not be one train to take you all the way there, you have to change trains. if you have a router this would be your first stop. you get off here and catch the internet train. while your first train continues off to another stop (another PC or iphone?).
the internet station is big, actually its several stations linked together. lots a people talking and moving. the trains are huge and fast. but there are porters (ISPs, DNSs) to help you on your way. they point you to your next train and your off to another station (router, gateway, server). some times you make several stops along the way. but the porters are everywhere to keep you from getting lost. finally your at work, you do what ever you do and return home. this happens thousands to millions of times a second, just for you.
back to the lights. if the train can go there, the link light is on. if the train is traveling, the activity light is on. other lights can say the size and destination of these trains.
then there is an activity light, that tells you that the 2 devices are exchanging information. the devices can be routers, switches, hubs, computers, cameras, or anything else that wants the internet.
now lets talk trains.
if every device is a train station, people would be the data. you want to get from place to place, so you board a train. a larger train would have more cars to move more people (bandwidth). a faster train with fewer stops will get you there sooner with out interution (latiency).
but you are at home (PC) and want to get to work (www.google.com). there will not be one train to take you all the way there, you have to change trains. if you have a router this would be your first stop. you get off here and catch the internet train. while your first train continues off to another stop (another PC or iphone?).
the internet station is big, actually its several stations linked together. lots a people talking and moving. the trains are huge and fast. but there are porters (ISPs, DNSs) to help you on your way. they point you to your next train and your off to another station (router, gateway, server). some times you make several stops along the way. but the porters are everywhere to keep you from getting lost. finally your at work, you do what ever you do and return home. this happens thousands to millions of times a second, just for you.
back to the lights. if the train can go there, the link light is on. if the train is traveling, the activity light is on. other lights can say the size and destination of these trains.
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