QoS Supported IPTV Service Architecture over Hybrid-Tree-Based Explicit Routed Multicast Network

Table 2

Hybrid multicast scheme with routing algorithms.

Hybrid-tree protocol	Multicast routing algorithm
PIM-SM	Equal cost multipath (ECMP)
QMRP	QoS shortest path first (QSPF)
HT-ERM	Constrained shortest path first (CSPF)