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多选题Which two statements about IS reachability TLV （TLV 2） and the extended IS reachability （TLV 22） are true？（）ATLV 22 supports wide metrics.BTLV 2 is only used in Level 1 routers.CTLV 22 displays the neighbor’s extended areas.DOnly TLV 22 can support the
题目
多选题
Which two statements about IS reachability TLV （TLV 2） and the extended IS reachability （TLV 22） are true？（）
A
TLV 22 supports wide metrics.
B
TLV 2 is only used in Level 1 routers.
C
TLV 22 displays the neighbor’s extended areas.
D
Only TLV 22 can support the inclusion of sub-TLVs.
E
Only TLV 22 can be flooded across L1/L2 boundaries.
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参考答案和解析
正确答案：
C,A
解析：
暂无解析