单项选择题
What is the maximum metric value that can be reported in a narrow metric TLV?（）
A. 63 B. 64 C. 1023 D. 1024
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?（）
单项选择题 Which action does a BGP speaker take when it detects that the reset state bit is set in an openmessage?（）
