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
答案解析:有
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