It is presented the stress equilibrium model and the stretch eigen-value model for evaluating the performance of overlay network multicast protocols.

提出了覆盖网络组播的链路压力均衡模型和组播树特征伸长度模型，用以评价覆盖网络组播协议的性能。

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In the future, multicast technologies can be promoted through lowering the threshold for multicast applications, that is, decreasing the granularity for an optical network multicast tree.

未来，可以通过降低光网络组播树的粒度来降低光组播的使用门槛，这将有利于促进组播技术的更广泛使用。

youdao

In the future, multicast technologies can be promoted through lowering the threshold for multicast applications, that is, decreasing the granularity for an optical network multicast tree.

未来，可以通过降低光网络组播树的粒度来降低光组播的使用门槛，这将有利于促进组播技术的更广泛使用。

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