hello
keepalive
BGP open
notification
Which attribute must exist in the BGP update packet?()A. LOCAL_ PREFB. AGGREG ATORC. AS_PathD. Weight
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以下属于BGP调试命令的有()A. debug bgp eventB. debug bgp keepaliveC. debug bgp updateD. debug bgp packetE. debug bgp open
在 BGP4 协议中，当接收到对方 open 报文后，路由器采用（）报文响应，从而建立两个路由器之间的邻居关系。A.hello B.update C.keepalive D.notification
BGP协议基于TCP协议，端口（ ）。BGP协议中，路由器通过（请作答此空）报文报告检测的错误信息。A.Update B.Keepalive C.Open D.NOTIFICATION
在BGP4协议中，当接收到对方open报文后，路由器采用（）报文响应，从而建立两个两个路由器之间的邻居关系。A.hello B.update C.keepalive D.notification
BGP协议中，哪种报文是用来传递路由的（）。A、OPENB、KEEPALIVEC、UPDATED、NOTIFICATION
If an edge Label Switch Router （LSR） is properly configured，which three combinations are possible？（）A、A received IP packet is forwarded based on the IP destination address and the packet is sent as an IP packet.B、An IP destination exists in the IP forwarding table. A received labeled packet is dropped because the label is not found in the LFIB table.C、There is an MPLS label-switched path toward the destination. A received IP packet is dropped because the destination is not found in the IP forwarding table.D、A received IP packet is forwarded based on the IP destination address and the packet is sent as a labeled packet.E、A received labeled IP packet is forwarded based upon both the label and the IP address.F、A received labeled packet is forwarded based on the label. After the label is swapped，the newly labeled packet is sent.
