routing table
compound.compound. a digital list or map that a computer network uses to decide where to send data. It helps information find the best path to reach its destination.
compound. a data table stored in a router or a networked computer that lists the routes to particular network destinations. It contains information on network topology and metrics used to determine the most efficient path for data packets.
The router uses a routing table to send your email.
When the primary connection failed, the router updated its routing table to redirect all traffic through the backup satellite link.
Network administrators must ensure that the routing table is correctly configured to prevent loops and ensure that packets do not expire before reaching their intended gateway.
A compound of the Middle English 'route', derived from the Old French 'rute' meaning a way or path, and the Old English 'tabele', originating from the Latin 'tabula' for a plank or list.
Etymology adapted from Wiktionary, available under CC BY-SA 4.0.
Commonly used in the context of networking and information technology; often paired with verbs like 'update', 'lookup', or 'configure'.
Last updated July 22, 2026