問題文
An engineer reuses the same edge identifier on two of the sites in one service and the pseudowires never settle. Which condition on that identifier does the documentation give, and which case does it hold back from?
選択肢
- It has to be unique within the domain, apart from a case such as moving a site to a stub core
- It has to be unique within the domain, apart from a case such as raising a site to a higher level
- It has to be unique within the domain, apart from a case such as letting a site share the older link
- It has to be unique within the domain, apart from a case such as homing a site onto a pair of boxes