单项选择题
On what is the Martini control plane based?（）
A.IGP B.LDP C.BGP D.RSVP
单项选择题 What is the maximum metric value that can be reported in a narrow metric TLV?（）
单项选择题 What is the type and scope of the LSA required to support traffic engineering in an OSPFenvironment?（）
单项选择题 Within a BGP confederation how are routing loops avoided?（）
