Advantages of RIPng, OSPFv3, and IS-IS

The biggest advantage of using RIPng (Routing Information Protocol Next Generation) is that it is relatively simple to understand and implement, and it has been the de facto routing standard for many years.

RIPng has a number of limitations that can cause problems in large networks, including the following:

A limit of 15 hops between the source and destination networks
A large amount of bandwidth taken up by periodic broadcasts of the entire routing table
Slow convergence
Routing decisions based on hop count; no concept of link costs or delay
Flat networks; no concept of areas or boundaries

OSPFv3 and IS-IS offer many advantages over RIPng, including the following:

No limitation on hop count
Route updates multicast only when changes occur
Faster convergence
Support for load balancing to multiple routers based on the actual cost of the link
Support for hierarchical topologies where the network is divided into areas