多选题Which three statements are correct about the differences in IS - IS and OSPF?（）AIS - IS is more CPU - intensive than is OSPFBFor greater fine tuning there are more IS - IS timersCIS - IS LSP con tains TLV fields and OSPF LSU contains the LSAsDNew additions to the protocol are easily implemented in OSPF but not with IS - ISEOSPF has more area types than does IS - IS
多选题
Which three statements are correct about the differences in IS - IS and OSPF?（）
A
IS - IS is more CPU - intensive than is OSPF
B
For greater fine tuning there are more IS - IS timers
C
IS - IS LSP con tains TLV fields and OSPF LSU contains the LSAs
D
New additions to the protocol are easily implemented in OSPF but not with IS - IS
E
OSPF has more area types than does IS - IS
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