does routing table get wiped out when the router shuts down?

workfrom925

Each time when a router is shut down, do all routes in its routing table get wiped clean? And when a router restarts, does it re-generates the routes and populate its routing table freshly? When are routing table kept? RAM? Flash? or NVRAM? Thanks.

networker050184

Depends on the source of the routing information. Static routes are learned through the configuration of the router so they are populated at startup whent he config is loaded. Dynamic routes are learned through routing protocols so these routes are ony learned when information is exchanged.