是的。 IP 多播的级别比 NIC 更高。 NIC 只知道以太网多播，并不关心 IP 或 IGMP。
NIC 通常支持多播过滤器，您可以添加 NIC 应侦听的一定数量的多播以太网地址。一旦超过该限制，侦听更多多播地址的唯一方法是将 NIC 置于混杂模式，这可能会导致繁忙网络的性能下降。
Yes. IP multicasting is at a higher-level than NICs. The NIC just knows about ethernet multicast, and doesn't care about IP or IGMP.
NICs usually support multicast filters, you can add up to a certain number of multicast ethernet addresses that the NIC should listen for. Once you surpass that limit, the only way to listen to more multicast addresses is to put the NIC in promiscuous mode, with the performance degradation that may entail on a busy network.
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是的。 IP 多播的级别比 NIC 更高。 NIC 只知道以太网多播，并不关心 IP 或 IGMP。
NIC 通常支持多播过滤器，您可以添加 NIC 应侦听的一定数量的多播以太网地址。一旦超过该限制，侦听更多多播地址的唯一方法是将 NIC 置于混杂模式，这可能会导致繁忙网络的性能下降。
Yes. IP multicasting is at a higher-level than NICs. The NIC just knows about ethernet multicast, and doesn't care about IP or IGMP.
NICs usually support multicast filters, you can add up to a certain number of multicast ethernet addresses that the NIC should listen for. Once you surpass that limit, the only way to listen to more multicast addresses is to put the NIC in promiscuous mode, with the performance degradation that may entail on a busy network.