This post is more like a “note to self” for certain TCP parameters which I usually modify (or plan to modify) on production servers.
Some good to know terms:
- Round Trip Time (RTT): It is the time taken by a packet from source machine to reach destination and come back. You can use ICMP ping to get the RTT.
- Latency: The time from the source sending a packet to the destination receiving it. This is often mixed with RTT. Clarify what you are talking about before interpreting anything.
- Bandwidth Delay Product (BDP): It is the amount of data that can be in transit in the network or simply the product of link bandwidth and RTT.