H31-161試験無料問題集「Huawei HCIE-Carrier IP (Written) 認定」

A. The LSDB of PE 1 does not have the type 1 LSA generated by CE 1.

B. The LSDB of PE 12 does not have the type 1 LSA generated by CE 1.

C. The public network rout to 43.1.1.0/24 does not exist in the routing table of PE2
.

D. The VPN route to 43.1.1.0/24 does not exist in the routing table of PE 2.

A. Bearer network delay=10s, allowed maximum delay = 20s

B. No strict requirement.

C. Bearer network delay=150 ms, allowed maximum delay = 200 ms

D. Bearer network delay=50 ms, allowed maximum delay = 100 ms

A. The DSCP values of packets the tester receives are 10 regardless of whether qos phb disable is configured for the outbound interface on RTC's IP access side.

B. If the qos phb disable command is configured for the outbound interface on the IP access side of RTC, the DSCP values of packets the tester receives remain unchanged.

C. The configurations on RTA or RTC are incorrect.

D. The DSCP values are 10 when RTA's IP packets leave the MPLS network because the EXP values are 1 when RTA's IP packets enter the MPLS network.

A. display firewall session table verbose

B. display firewall session table

C. display firewall packet-filter default all

D. display firewall server-map

A. A VPN and the Internet can interwork through the CE or PE.

B. For a VPN and the Internet to interwork, the user device used to access the Internet must have a route to the desired address on the Internet and a backhaul route.

C. For a VPN and the Internet to interwork, network address translation (NAT) must be performed. NAT can be deployed on the interface of a PE used to connect to the Internet gateway, on the interface of a PE used to connect to a CE, or on the interface of a CE used to connect to a PE.

D. A VPN and the Internet can interwork through the PE, Internet gateway, or CE.

A. An MPLS LSP may be unidirectional .If BFD packets are transmitted along an MPLS LSP in the forward direction., these packets may be forwarded over IP in the reverse direction. Then the forward and reverse paths of a packet may be different As a result, when a fault occurs on the reverse path, BFD detects and reports the fault even if the MPLS LSP is normal.

B. In BFD for MPLS LSP, LSP Ping is used to negotiate the identifier and parameters of a BFD session.

C. BFD for MPLS LSP detects faults only on the forwarding plane. LSP Ping, however, can not only detect faults on the forwarding plane, but also find out inconsistencies between the forwarding plane and the control plain- Therefore, they are often combined for a better fault detection solution.

D. If MPLS LSPs work in load balancing mode, a BFP session should be triggered on each LSP in principle. Only one BFD session. however, can be initialed for load-balancing MPLS LSPs to an intermediate node In this case, the forwarding path ol BFD packets may be different from what expected. As a result may be reported or missed.

A. Allowed maximum packet loss =10-6

B. Allowed maximum packet loss =1%

C. No strict requirement

D. Allowed maximum packet loss =1%

A. The SPE manages and advertises VPN routes. It maintains all routes on the VPN it is connected to through UPEs, including routes of local and remote sites. The SPE, however, does not advertise routes of remote sites to the UPE, but only advertises the labeled default routes or aggregate routes of VPN instances.

B. When MP-IBGP is deployed between an SPE and UPEs, the SPE can function as the RR of these UPEs so that routes can be advertised between IBGP peers. It is not recommended that an SPE serving as the RR of UPEs still reflect routes between other PEs so that routes on UPEs can be reduced. A UPE and an SPE communicate through a physical interface, subinterface, or tunnel interface. When the tunnel interface is configured, only one MPLS network is allowed between them and labeled packets are transferred through tunnels. Their communication may fail if the MPLS network is replaced with an IP network.

C. The SPE and UPE are relative to each other. In a hierarchical PE structure, a PE on the upper layer is the SPE to PEs on the lower layer, and these lower-layer PEs are UPEs to the SPE. However, the hierarchical PE cannot coexist with common PEs on an MPLS network.

D. The UPE provides access service for users. It maintains the routes of the VPN sites it is directly connected to and sometimes aggregates routes of remote VPN sites. In addition, a UPE allocates inner labels for routes of the sites directly connected to the UPE and advertises VPN routes with these labels to an SPE through MP-BGP.

E. The SPE has a large routing table, which provides excellent forwarding performance and access capability, whereas the UPE has a small routing table and poor forwarding performance, but occupies fewer interface resources.

A. Telnet packets are discarded during network congestion because the IP priority of Telnet packets is 0 and is scheduled in the BE queue.

B. Telnet packets are protocol packets and join high-priority queues by default.

C. The UDP port number for Telnet packets is 23.

D. You can improve the priority of Telnet packets and add them to the PQ queue to ensure them during network congestion.