倒数第二跳弹出特性PHP（Penultimate Hop Popping）在（）节点上配置。
倒数第二跳弹出特性PHP（Penultimate Hop Popping）在（）节点上配置。
相关考题：
关于跳频的描述,哪一种是对的() A.COMB可以支持HOP=BB与HOP=SY两种。B.无论2000基站中采用的是哪一种CDU，都可以支持HOP=BB。C.基站中采用CDU-D，而BSC中定义的跳频方式是HOP=SY，同样可以正常工作D.全部不对
MPLS的标签空间描述正确的是()。 A.16～1023是静态LSP和静态CR-LSP共享的标签空间B.1024以上是LDP、RSVP-TE、MP-BGP等动态信令协议共享的标签空间C.最后一跳收到标签控件为0的报文直接进行IP转发或下一层标签转发D.倒数第二跳LSR进行标签交换时，如果发现交换后的标签值为3，则将标签弹出，并将报文发给下最后一跳
TCL－179（A）型野战跳频数字接力跳频起始频率、该频段最低频率的差值（F）、跳频步进（HOP-STEP）、跳频点数（HOP-NUM）的关系为（）。A、F≥49.9-（HOP-NUM）×[（HOP-STEP）-1]B、F≤49.9-（HOP-NUM）×[（HOP-STEP）-1]C、F≥49.9-（HOP-STEP）×[（HOP-NUM）-1]D、F≤49.9-（HOP-STEP）×[（HOP-NUM）-1]
关于跳频的描述，哪一种是对的（）A、COMB可以支持HOP=BB与HOP=SY两种。B、无论2000基站中采用的是哪一种CDU，都可以支持HOP=BB。C、基站中采用CDU-D，而BSC中定义的跳频方式是HOP=SY，同样可以正常工作D、全部不对
What are the "bound IP addresses" used for in LDP？（）A、For each such address and mask /32, one label binding is created.B、As the TCP endpoint, IP addresses are used by the LDP session.C、These addresses are used to find the label binding to put in the LFIB, by looking up these IP addresses in the routing table.D、These addresses are used for penultimate hop popping (PHP) when forwarding packets to the next router directly.
Which of these statements about penultimate hop popping are true？（）A、It is used only for directly connected subnets or aggregate routesB、It can only be used with LDP.C、It is only used when two or more labels are stacked.D、It enables the Edge LSR to request a label pop operation from Its upstream neighborsE、It is requested through TDP using a special label value that is also called the implicit-null value.F、It is requested through LDP using a special label value that is also called the implicit-null value.
Which three of these statements about penultimate hop popping are true？（）A、It is used only for directly connected subnets or aggregate routes.B、It can only be used with LDP.C、It is only used when two or more labels are stacked.D、It enables the Edge LSR to request a label pop operation from its upstream neighbors.E、It is requested through TDP using a special label value that is also called the implicit-null value.F、It is requested through LDP using a special label value that is also called the implicit-null value.
多选题Which three of these statements about penultimate hop popping are true？（）AIt is used only for directly connected subnets or aggregate routes.BIt can only be used with LDP.CIt is only used when two or more labels are stacked.DIt enables the Edge LSR to request a label pop operation from its upstream neighbors.EIt is requested through TDP using a special label value that is also called the implicit-null value.FIt is requested through LDP using a special label value that is also called the implicit-null value.
单选题向IBGP对等体发布路由，将自身地址作为下一跳的配置为（）Aneighborx.x.x.xnext-hop-selfBpeerx.x.x.xnext-hop-selfCneighborx.x.x.xnext-hop-localDpeerx.x.x.xnext-hop-local
多选题在MPLS VPN网络中，数据包在进入公网被转发时，会被封装上两层MPLS标签，下列选项中对数据包的处理过程，描述正确的是（）A数据包在倒数第二跳设备上被弹出外层标签后转发给对端PE设备B对端PE设备收到的不是带标签的IP数据包C倒数第二跳设备弹出外层标签的依据是数据包携带的外层标签为显示空标签3D对端PE设备依据内层标签将数据包正确发送到响应的VPN中
单选题What are the "bound IP addresses" used for in LDP？（）AFor each such address and mask /32, one label binding is created.BAs the TCP endpoint, IP addresses are used by the LDP session.CThese addresses are used to find the label binding to put in the LFIB, by looking up these IP addresses in the routing table.DThese addresses are used for penultimate hop popping (PHP) when forwarding packets to the next router directly.
判断题MPLS标签中，如果出节点分配给倒数第二跳节点的标签值为0，则倒数第二跳LSR需要将值为0的标签正常压入报文标签值顶部，转发给最后一跳，最后一跳发现报文携带的标签值为0，则将标签弹出。0标签只有出现在栈底时才有效A对B错