兩ebgp鄰居發(fā)路由過來 ，哪些屬性重置？

hsrp speak狀態(tài)是什么意思？

Which of the following are key characteristics of PPP?（）

As a CCNA candidate,you must have a firm understanding of the IPv6 address structure.Refer to IPv6 address,could you tell me how many bits are included in each filed?（）

Which of the following describes the roles of devices in a WAN?（）

什么問題導致SERVER VTP密碼跟替他交換機VTP密碼不匹配？

four switches， which one will be root switch.（no pic）.

When upgrading the IOS image,the network administrator receives the exhibited error message.What could be the cause of this error?（）

當將多個交換機加入到MST region當中會發(fā)生什么（what happen）？

What is method list for configure aaa？