问题:
A . The MDT group address should be the same for both address families in the same VRF
B . The MDT group address should be the same for both address families in the different VRFs
C . Configuration of the MDT source on a pre-VRF basis is supported only on IPv6
D . The MDT group address should be different for both address families in the same VRF
● 参考解析
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