Which two are characteristics of the IS -IS protocol but not OSPF?()
- A、forms adjacencies with all neighbors
- B、supports demand circuit routing
- C、provides routing support for multiple network layer protocols
- D、utilizes SPF algorithm
- E、provides for network scalability by allowing the network to be separated into areas
- F、three layers of hierarchical routing
正确答案:A,C
答案解析:有
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