Câu 2: JN0-661: Service Provider Routing and Switching

Click the Exhibit button.[edit]user@PE-1# run show l2 circuit connectionsLayer-2 Circuit Connections:Legend for connection status (St)EI - - encapsulation invalid NP - - interface h/w not presentMM - - mtu mismatch Dn - - downEM - - encapsulation mismatch VC-Dn - -Virtual circuit Down -CM - - control-word mismatch Up - -operationalVM - - vlan id mismatch CF - - Calladmission control failureOL - - no outgoing label IB - - TDMincompatible bitrareNC - - intf encaps not CCC/TCC TM - - TDMmisconfigurationBK - - Backup Connection ST - - StandbyConnection -CB - - rcvd cell-bundle size bad SP - - StaticPseudowire -LD - - local site signaled down RS - - remotesite standbyRD - - remote site signaled down XX - - unknownLegend for interface status -Up - - operational -Dn - - down -Neighbor: 4.4.4.4 -Interface Type St Timelast up #Up transge-0/0/1.512 (vc 1) rmt OL[edit]user@PE-1# show protocols ldpinterface ge-0/0/2.0;[edit]user@PE-1# show protocols l2circuitneighbor 4.4.4.4 {interface ge-0/0/1.512 {virtual-circuit-id 1}}[edit]user@PE-1# show interfaces ge-0/0/1vlan-tagging;encapsulation vlan-ccc;unit 512 {encapsulation vlan-ccc;vlan-id 512;}[edit]uxer@P-1 # show protocols ldpinterface all;[edit]user@P-2# show protocols ldpinterface all;[edit]user@PE-2# run show l2circuit connectionsLayer-2 Circuit Connections:Legend For connection status (St)EI - - encapsulation invalid NP - - interface h/w not presentMM - - mtu mismatch Dn - - downEM - - encapsulation mismatch VC-Dn - -Virtual circuit Down -CM - - control-word mismatch Up - -operationalVM - - vlan id mismatch CF - - Calladmission control failureOL - - no outgoing label IB - - TDMincompatible bitrateNC - - intf encaps not CCC/TCC TM - - TDMmisconfigurationBK - - Backup Connection ST - - StandbyConnection -CB - - rcvd cell-bundle size bad SP - - StaticPsewdowire -LD - - Local site signaled down RS - - remotesite standbyRD - - remote site signaled down XX - - unknownLegend for interface status -UP - - operational -DN - - down -Neighbor: 1.1.1.1 -Interface Type St Timelast up #Up transge-0/0/1.512 (vc 1) rmt OL[edit]user@PE-2# show protocols ldpinterface ge-0/0/2.0;[edit]user@PE-2# show protocols l2circuitneighbor 1.1.1.1 {interface ge-0/0/1.512 {virtual-circuit-id 1;}}[edit]user@PE-2# show interfaces ge-0/0/1vlan-tagging;encapsulation vlan-ccc;unit 512 {encapsulation vlan-ccc;vlan-id 512;}Referring to the exhibit, you have configured an L2 circuit that connects Site-1 and Site-2, but the L2 circuit is not functioning. The topology in this scenario is shown below.Site-1 > PE-1 > P-1 > P-2 > PE-2 Site-2Which action will allow communication between Site-1 and Site-2?

1. A. Change the virtual circuit identifier to 2 for PE-2.
2. B. Add the family inet statement under the ge-0/0/1.512 interface for PE-1 and PE-2.
3. C. Add the lo0 interface under the {edit protocols ldp} hierarchy for all routers. — đáp án hiện tại
4. D. Add the lo0 interface under the {edit protocols 12circuit} hierarchy for PE-1 and PE-2