(1) exchanges information only with neighboring routers.
(2) The information exchanged by the router is all the information known by the router at present, that is, its own routing table.
(3) Exchange routing information regularly.
RIP is translated into routing information protocol, which is a routing protocol based on distance vector algorithm and uses hop count as a metric. The requirements for bandwidth, configuration and management are not high, and it is mainly suitable for small-scale networks.
After the router runs RIP, it will send a route update request first, and the router that receives the request will send its own RIP route in response. After the network is stable, the router will send routing updates regularly.
Extended data:
Limitations of RIP protocol
The 1. protocol stipulates that the metric of effective routing information cannot exceed 15, which makes the protocol unsuitable for very large networks. It should be said that it is precisely because the designer considers that the protocol is only applicable to small networks that this restriction is made. For the target network with the metric of 16, it is considered unreachable.
2. In practical application, the routing protocol is prone to "counting to infinity", which makes the routing convergence slow, and it takes a long time for the routing information to stabilize after the network topology changes.
References:
Baidu encyclopedia -RIP protocol