问答题
when you use LSA type 4 in OSPF environment？
Type 4 LSAs （ASBR Summary LSAs）&ens......
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问答题 hyyouuseSpanning-tree？DifferencebetweenPVST&MST.
问答题 whatisthedifferencebetweentheHSRPandVRRP？
问答题 whatistheroutingfamilywhichtherouterhastobuildmapfortheroutingdomain？
