Date Added: May 2012
The Internet has been growing rapidly during the past few decades. Its routing system may encounter scalability problem as the size of Internet keeps growing. The Internet Research Task Force (IRTF) highlighted this issue lately and inspired many proposals that attempt to address this problem. However, those proposals do not reach a consensus on a fruitful solution. Instead of presenting another new proposal, this paper deals with specification, analysis and evaluation of the routing scaling of the Internet. The qualitative analysis in this paper reveals gains and losses of different techniques that aim to improve the scalability of the Internet routing system.