问答题
简答题
r1 is the hub ， multipoint mode subinterface， r2 and r3 is spoke， when r2 down at the spoke， What will r1 react？how about r3？
【参考答案】
R1 will set the PVC to r2 as inactive. R3 will not be affected.
点击查看答案
相关考题
-
单项选择题
TheclassicSpanningTreeProtocol（802.1D1998）useswhichsequenceofvariablestodeterminethebestreceivedBPDU？（）
A.lowest root bridge id；lowest sender bridge id；lowest port id；lowest root path cost
B.lowest root path cost；lowest root bridge id；lowest sender bridge id；lowest sender port id
C.lowest root bridge id；lowest sender bridge id；lowest root path cost；lowest sender port id
D.lowest root bridge id；lowest root path cost；lowest sender bridge id；lowest sender port id -
问答题
Inarunsparse-dense-modemulticastnetwork，whenrendezvouspointdown，willtherecipientreceivethepacketssendbythesource？why？ -
单项选择题
Refer to the exhibit. In this network，R1 has been configured to advertise a summary route， 192.168.0.0/22，to R2. R2 has been configured to advertise a summary route，192.168.0.0/21， to R1. Both routers have been configured to remove the discard route （the route to null created when a summary route is configured） by setting the administrative distance of the discard route to 255. What will happen if R1 receives a packet destined to 192.168.3.1？ （）
A.The packet will loop between R1 and R2
B.It is not possible to set the administrative distance on a summary to 255
C.The packet will be forwarded to R2，where it will be routed to null0
D.The packet will be dropped by R1，since there is no route to 192.168.3.1
