An Effective Tree Recovery Mechanism for Resilient Overlay Multicast

 Zongming Fei

 One issue in resilient overlay multicast is the tree recovery after
 a non-leaf end host fails or leaves the session. The time to resume
 the data flow to those affected nodes in the subtree is an important
 measure of the resilience of the system. We propose a proactive method
 for the affected nodes to find their respective new parents quickly
 so that the data flow to them can be restored. The method takes into
 account the degree constrains on end hosts. The recovery protocol can
 be used in the case when multiple end hosts leave the session
 simultaneously.