How is an RSVP resv message sent back to the ingress router？（）

A.刷新上游的RSVP Resv消息

B.刷新下游的RSVP Path消息

C.刷新下游的RSVP Resv消息

D.刷新上游的RSVP path消息

A.Path

B.Resv

C.PathConf

D.ResvConf

A.Path消息

B.Resv消息

C.ResvConf消息

D.Resquit消息

E.PathTear消息

A.path

B.resv

C.session

D.keepalive

A.单向，它为单向的数据流做资源预留

B.面向接收者，由接收者发起对资源预留的请求，并维护资源预留信息

C.RSVP通过path消息以及resv消息进行路径的计算以及建立

D.使用“软状态”(soft state)机制维护资源预留信息

A. It is the size of the RSVP hello packet

B. It is how long it maintains RSVP neighbors

C. It is the length of time between RSVP hello packets

D. It is how long the router waits before declaring a router to be down

A. established using LDP

B. established using BGP

C. established using RSVP

D. established using IP

A. It polices each individual session to an explicit rate.

B. It does not police, but never allows link oversubscription.

C. It polices the aggregate rate of all sessions to an explicit rate.

D. It does not police, but limits the amount of reservable bandwidth.

A、Path

B、Resv

C、PathTear

D、ResvTear

A、Path

B、Resv

C、PathTear

D、ResvTear