Broadcast Routing In Computer Networks
When a tool has multiple methods to achieve a destination, it always selects one path by preferring it over others. This choice method is termed routing. Routing is finished by special network devices known as routers or it may be done by means of software system processes. The software-based routers have limited practicality and limited scope.
A router is often designed with some default route. A default route tells the router wherever to forward a packet if there's no route found for a particular destination. just in case there are multiple methods existing to achieve an identical destination, the router will create a call supported by the subsequent information:
- Hop Count
- Bandwidth
- Metric
- Prefix-length
- Delay
Routes may be statically designed or dynamically learned. 0ne route may be designed to be most well-liked over others. By default, the published packets don't seem to be routed and forwarded by the routers on any network. Routers produce broadcast domains however they may be designed to forward broadcasts in some special cases. A broadcast message is destined for all network devices.
Broadcast routing can be done in two ways
1. A router creates a knowledge packet and so sends it to every host one by one. during this case, the router creates multiple copies of one knowledge packet with completely different destination addresses. All packets are sent as unicast however as a result if they're sent to any or all, it simulates as if the router is broadcasting.
This technique consumes innumerable information measures and the router should destination address of every node.
2. Secondly, once a router receives a packet that's to be broadcasted, it merely looks at those packets out of all interfaces. All routers are designed with the same approach.
This technique is straightforward on the router’s CPU however might cause the matter of duplicate packets received from peer routers.
Reverse path forwarding may be a technique, within which the router is aware of earlier regarding its precursor from wherever it ought to receive the published. this method is employed to observe and discard duplicates.