What are two enhancements that OSPFv3 supports over OSPFv2?
A、
It requires the use of ARP．
B、
It can support multiple IPv6 subnets on a single link．
C、
It supports up to 2 instances of OSPFv3 over a common link．
D、
It routes over links rather than over networks．
【正确答案】
B、D
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