Round-trip time (RTT) is a primary metric for network latency. It measures the milliseconds elapsed between sending a request and receiving the corresponding response. RTT is heavily influenced by physical distance, the number of routing hops, and processing delays at intermediary nodes. High RTT causes sluggish performance in interactive applications and reduces the throughput of TCP connections.
We're seeing a round-trip time of over 300 milliseconds to the Sydney data center, which is causing the database replication to time out.
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Related terms
Latency
The time it takes for a packet of data to travel from its source to its destination.
RTT
The time it takes for a data packet to travel to a destination and back.
TCP/IP
Transmission Control Protocol/Internet Protocol is the foundational suite of communication protocols used to interconnect network devices.