Distance vector routing updates

Distance Vector Routing 

Distance vector routing updates 

7.1.1 

This page will explain how distance vector routing updates occur.
Routing table updates occur periodically or when the topology in a distance vector protocol network changes. It is important for a routing protocol to update the routing tables efficiently. As with the network discovery process, topology change updates proceed systematically from router to router. Distance vector algorithms call for each router to send its entire routing table to each of its adjacent neighbors. The routing tables include information about the total path cost. The path cost is defined by the metrics and the logical address of the first router on the path to each network in the table.
The next page will explain how routing loops occur.