Which method changes the forwarding decision that a router makes without first changing the routing table or influencing the IP data plane?
Click on the arrows to vote for the correct answer
A. B. C. D.C.
The method that changes the forwarding decision that a router makes without first changing the routing table or influencing the IP data plane is called Policy-Based Routing (PBR).
Policy-Based Routing (PBR) is a mechanism that allows for the modification of how a router makes forwarding decisions based on specific policies or criteria. With PBR, traffic is forwarded based on additional criteria beyond the traditional routing table lookup, such as source address, destination address, source interface, and more.
PBR can be used to implement advanced traffic routing scenarios, such as load balancing, bandwidth management, and traffic filtering. PBR allows for more granular control over traffic flow than traditional routing protocols, which base their forwarding decisions solely on the contents of the routing table.
One of the advantages of PBR is that it can be implemented without modifying the underlying routing table or influencing the IP data plane, which means that the existing routing infrastructure can be kept intact. PBR is also flexible, allowing network administrators to define policies based on a wide range of criteria.
In summary, PBR is a powerful tool that can be used to modify how a router makes forwarding decisions based on specific policies or criteria, without changing the routing table or influencing the IP data plane.