1.4 Performance

Question 1

packet loss

Answer 1

packets get dropped when the router’s memory to hold queued packets fills up

Question 2

nodalprocessing delay

Answer 2

the amount of time it takes for a network node (switch or router) to process the packet

Question 3

queueing delay

Answer 3

amount of time the packet sits at the output link, waiting to be sent to the router

Question 4

transmission delay

Answer 4

amount of time for all the packet’s bits to be pushed from the node into the outgoing link

Question 5

propagation delay

Answer 5

the amount of time the packet spends in the link after leaving the router

Question 6

traceroute

Answer 6

program that provides delay measurement from source to router

Question 7

throughput definition

Answer 7

rate of bits being sent from sender to receiver

Question 8

bottleneck link definition

Answer 8

the link of an end-to-end path that limits throughput
- often at the network edge
- maximum throughput = capacity of the smallest link

Question 9

bottleneck link practice

Answer 9

https://gaia.cs.umass.edu/kurose_ross/interactive/end-end-throughput-simple.php