OGMD6C实现的功能跟OGMD4C＋OGMD2R＋OGMD2B是一样的。

ZXWM M900和ZXMP M800设备均支持2种监控系统：2M监控系统和10M、100 M监控系统。 点击查看答案

In a ZXMP M800 system using 100M monitoring, the order-wire and protection switching commands are delivered to related network elements of multicast groups. Each system has a maximum of （）multicast groups.

A.1
B.2
C.3
D.4

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