在MPLS VPN骨干网中传输的数据包所带的label不会超过一个。
在MPLS VPN骨干网中传输的数据包所带的label不会超过一个。
相关考题:
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,下列选项中关于两层标签的描述,错误的是:() A.MPLS VPN的外层标签称为私网标签,内层标签称为公网标签。B.MPLS VPN的外层标签是由LDP协议或静态分配的,内层标签是由对端的MP-BGP邻居分配的。C.默认情况下,外层标签在数据包转发给最后一跳设备前被弹出。D.外层标签用于在PE设备上将数据包正确发送到相应的VPN中。
应用MPLS VPN转发数据包时,所依据的信息是(1),在MPLS VPN中用户使用专用的IP地址,因此(2)。(1)A.VPN标识符+IP地址B.VPN标识符C.IP地址D.IP地址+掩码
在MPLS网络中的路由器接收到带label的数据包,它如何判断数据包是否有多于一层的label()。A、bottom-of-stack位为1,则还有labelB、bottom-of-stack位为0,则还有labelC、MPLS网络中的路由器无法判断是否还有更多labelD、在MPLS网络中,数据包不可能带超过一层的label
MPLS VPN骨干网中的P路由器在转发VPN数据包时()。A、P路由器有VPN路由,它按照VPN路由器表进行转发B、P路由器没有VPN路由,它根据VPN数据包的目的IP地址查找IGP路由表进行转发C、P路由器没有VPN路由,它根据上层label进行转发D、P路由器没有VPN路由,不同的VPN有不同的label,所以它根据VPN label转发
MPLS-VPN专线是通过采用MPLS技术在中国移动IP骨干网上构建企业IP专网,同时通过VPN进行隔离,实现政企客户多个分支机构之间()的互联,用途与数据(IP-VPN)专线类似。A、跨地域B、安全C、高速D、可靠
There is MPLS VPN traffic traversing through a TE intermediate router. What is the MPLS packet labelstack sequence (from outer to inner) for the VPN traffic on this router?()A、TE label, IGP label, VPN labelB、IGP label, TE label, VPN labelC、TE label, VPN label, IGP labelD、VPN label, IGP label, TE labelE、IGP label, VPN label, TE label
Which option describes the incorrect usage of the Label Distribution method?()A、LDP is primarily used in internal networks of MPLS-VPN providers.B、MP-BGP is used for label distribution for VPN customer routes.C、Directed LDP is used for label distribution in L2-VPN Attachement Circuits.D、MP-BGP is used for label distribution in MPLS Traffic Engineered networks.
In the context of MPLS,what is the correct action to be performed when an aggregate label is received ?()A、It adds the VPN label into the top label in the MPLS label stackB、It replaces the top label in the MPLS label stack with a VPN label and propagatesC、It replaces the bottom label in the MPLS label stack with a VPN label and propagatesD、It removes the top label in the MPLS label stack and does a Layer 3 lookup on underlying IP packetsE、None of above
MPLS需要LDP/TDP,是因为:()A、MPLS可以需要LDP/TDP,也可以不需要,是可以选择的B、LDP/TDP是转发机制,用于转发带标记数据包(Labeled packet)C、LDP/TDP用于分配MPLS VPN的标记(label)D、LDP/TDP用于交换分配给IP目的的标记(label)
在MPLS中,LDP的具体解释()。A、Label Data PairB、Label Distribution PairC、Label Distribution ProtocolD、Label Data Protocol
Which four services use the inner labels of an MPLS label stack? ()A、MPLS VPNB、switching path in MPLS coreC、Cisco MPLS Traffic Engineering and Fast RerouteD、MPLS over ATME、VPN over Traffic Engineering coreF、any transport over MPLS
MPLS BGP VPN中,以下关于P说法正确的是()。A、P位于MPLS骨干网,运行IGPB、P与其他路由器交换VPNv4路由信息C、P必须运行BGPD、P不直接连VPN用户E、P参与交换VPN用户的路由信息
多选题MPLS-VPN专线是通过采用MPLS技术在中国移动IP骨干网上构建企业IP专网,同时通过VPN进行隔离,实现政企客户多个分支机构之间()的互联,用途与数据(IP-VPN)专线类似。A跨地域B安全C高速D可靠
单选题In the context of MPLS,what is the correct action to be performed when an aggregate label is received ?()AIt adds the VPN label into the top label in the MPLS label stackBIt replaces the top label in the MPLS label stack with a VPN label and propagatesCIt replaces the bottom label in the MPLS label stack with a VPN label and propagatesDIt removes the top label in the MPLS label stack and does a Layer 3 lookup on underlying IP packetsENone of above
单选题Which option describes the incorrect usage of the Label Distribution method?()ALDP is primarily used in internal networks of MPLS-VPN providers.BMP-BGP is used for label distribution for VPN customer routes.CDirected LDP is used for label distribution in L2-VPN Attachement Circuits.DMP-BGP is used for label distribution in MPLS Traffic Engineered networks.
单选题There is MPLS VPN traffic traversing through a TE intermediate router. What is the MPLS packet labelstack sequence (from outer to inner) for the VPN traffic on this router?()ATE label, IGP label, VPN labelBIGP label, TE label, VPN labelCTE label, VPN label, IGP labelDVPN label, IGP label, TE labelEIGP label, VPN label, TE label
多选题MPLS BGP VPN中,以下关于P说法正确的是()。AP位于MPLS骨干网,运行IGPBP与其他路由器交换VPNv4路由信息CP必须运行BGPDP不直接连VPN用户EP参与交换VPN用户的路由信息