The rate of data transfer or throughput; a theoretical maximum capability of a specific physical medium
Bandwidth
A collection of performance measurements against a system at a particular point in time
Baseline
A situation in which a network device drops
one or more packets.
Discard
A protocol that defines how control messages are exchanged between nodes in a network
Internet Control Message Protocol (ICMP)
A standard of measurement
Metric
A study of how traffic moves through a network
Network readiness assessment (NRA)
The amount of time required to retransmit a packet
Retransmission
The amount of time it takes to send a packet to another node and have that node return the packet to the sender.
Round trip time (RTT)
A measure of the amount of traffic a network can handle.
Throughput
1. The first
step in measuring performance is to sample current latency.
TRUE OR FALSE
Which term describes the amount of time it takes for a packet to travel from one point to the other?
2. Which term describes the amount of time it takes for a packet to travel from one node to another?
4. What is stye average latency of satellite links?
5. Why might a network device discard a packet?
Security policy
6. What action does a network device take when its buffers are full?
7. Which protocol does ping and trace route use to measure performance?
8. Which protocol is used to set device characteristics?
9. Which TCP option should be set to the network MTU?
10. What describes a plan of action when a network's performance falls below desired thresholds?
Round-trip time (RTT), also called round-trip delay, is the time required for a signal pulse or packet to travel from a specific source to a specific destination and back again.
In computer networking, latency is an expression of how much time it takes for a data packet to travel from one designated point to another.
Latency Definition
Latency refers to the delay that happens between when a user takes an action on a network or web application and when they get a response. Another latency definition is the total time or “round trip” needed for a packet of data to travel.
Bandwidth is measured as the amount of data that can be transferred from one point to another within a network in a specific amount of time. Typically, bandwidth is expressed as a bitrate and measured in bits per second (bps).