Multicast Congestion Control with Distrusted Receivers

ABSTRACT Congestion ontrol proto ols rely on re eivers to support fair bandwidth sharing. However, a re eiver has in entives to eli it self-bene ial bandwidth allo ations and hen e may manipulate its ongestion ontrol proto ol. Whereas the issue of re eiver misbehavior has been studied for uni ast ongestion ontrol, the impa t of re eiver misbehavior in multi ast remains unexplored. In this paper, we examine the problem of fair ongestion ontrol in distrusted multiast environments. We lassify standard me hanisms for multi ast ongestion ontrol and determine their potential vulnerabilities to re eiver misbehavior. Our evaluation of prominent multi ast proto ols shows that ea h of them is sus eptible to atta ks by a misbehaving re eiver.