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JN0-661 · Question #44

JN0-661 Question #44: Real Exam Question with Answer & Explanation

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Question

Click the Exhibit button. [edit] user@PE-1# run show l2 circuit connections Layer-2 Circuit Connections: Legend for connection status (St) EI - - encapsulation invalid NP - - interface h/w not present MM - - mtu mismatch Dn - - down EM - - encapsulation mismatch VC-Dn - - Virtual circuit Down CM - - control-word mismatch Up - - operational VM - - vlan id mismatch CF - - Call admission control failure OL - - no outgoing label IB - - TDM incompatible bitrare NC - - intf encaps not CCC/TCC TM - - TDM misconfiguration BK - - Backup Connection ST - - Standby Connection CB - - rcvd cell-bundle size bad SP - - Static Pseudowire LD - - local site signaled down RS - - remote site standby RD - - remote site signaled down XX - - unknown Legend for interface status Up - - operational Dn - - down Neighbor: 4.4.4.4 Interface Type St Time last up #Up trans ge-0/0/1.512 (vc 1) rmt OL [edit] user@PE-1# show protocols ldp interface ge-0/0/2.0; [edit] user@PE-1# show protocols l2circuit neighbor 4.4.4.4 { interface ge-0/0/1.512 { virtual-circuit-id 1 } } [edit] user@PE-1# show interfaces ge-0/0/1 vlan-tagging; encapsulation vlan-ccc; unit 512 { encapsulation vlan-ccc; vlan-id 512; } [edit] uxer@P-1 # show protocols ldp interface all; [edit] user@P-2# show protocols ldp interface all; [edit] user@PE-2# run show l2circuit connections Layer-2 Circuit Connections: Legend For connection status (St) EI - - encapsulation invalid NP - - interface h/w not present MM - - mtu mismatch Dn - - down EM - - encapsulation mismatch VC-Dn - - Virtual circuit Down CM - - control-word mismatch Up - - operational VM - - vlan id mismatch CF - - Call admission control failure OL - - no outgoing label IB - - TDM incompatible bitrate NC - - intf encaps not CCC/TCC TM - - TDM misconfiguration BK - - Backup Connection ST - - Standby Connection CB - - rcvd cell-bundle size bad SP - - Static Psewdowire LD - - Local site signaled down RS - - remote site standby RD - - remote site signaled down XX - - unknown Legend for interface status UP - - operational DN - - down Neighbor: 1.1.1.1 Interface Type St Time last up #Up trans ge-0/0/1.512 (vc 1) rmt OL [edit] user@PE-2# show protocols ldp interface ge-0/0/2.0; [edit] user@PE-2# show protocols l2circuit neighbor 1.1.1.1 { interface ge-0/0/1.512 { virtual-circuit-id 1; } } [edit] user@PE-2# show interfaces ge-0/0/1 vlan-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-2 Which action will allow communication between Site-1 and Site-2?

Options

  • AChange the virtual circuit identifier to 2 for PE-2.
  • BAdd the family inet statement under the ge-0/0/1.512 interface for PE-1 and PE-2.
  • CAdd the lo0 interface under the {edit protocols ldp} hierarchy for all routers.
  • DAdd the lo0 interface under the {edit protocols 12circuit} hierarchy for PE-1 and PE-2

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