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300-515 · Question #176

SIMULATION 6 Guidelines This is a lab item in which tasks will be performed on virtual devices. Refer to the Tasks tab to view the tasks for this lab item Refer to the Topology tab to access the devic

The correct answer is C. Apply route-map vlan10_to_ISP_2 on RA Ge2/1.. There is an important mismatch to flag here: the simulation describes an MPLS L3VPN/IPv6 BGP lab (CE, PE, RR topology), but the answer choices reference a route-map on router "RA" with interfaces like Ge1/10, Ge2/0, Ge2/1, and Ge1/20. These choices appear to belong to a different

Core Routing

Question

SIMULATION 6 Guidelines This is a lab item in which tasks will be performed on virtual devices. Refer to the Tasks tab to view the tasks for this lab item Refer to the Topology tab to access the device console(s) and perform the tasks. Console access is available for all required devices by clicking the device icon or using the tab(s) above the console window. All necessary pre-configurations have been applied. Do not remove any existing configurations from the devices, only those necessary to make the appropriate changes required to fulfill the listed tasks. Do not change the enable password or hostname for any device. Save your configurations to NVRAM before moving to the next item. Click Next at the bottom of the screen to submit this lab and move to the next question. When Next is clicked, the lab closes and cannot be reopened. Topology Tasks CE1 and CE2 are IPv6 Customer Premise Equipment of two customers that communicate with each other through the MPLS L3VPN core comprising Provide Edge PE1, PE2, and route- reflector RR. Perform the below configuration and verification tasks as noted. 1. Troubleshoot and modify the CEs to establish IPv6 BGP sessions with the PEs. 2. Troubleshoot and modify the PEs to receive the remote CE's advertised route in their BGP VRF table. Initial configuration with IPv6 addressing has been completed. Do not change the configurations except to fulfill the abovementioned tasks. Apply the solution with the minimum configuration. Answer: See explanation below.

Exhibits

300-515 question #176 exhibit 1
300-515 question #176 exhibit 2

Options

  • AApply route-map vlan10_to_ISP_2 on RA Ge1/10.
  • BApply route-map vlan10_to_ISP_2 on RA Ge2/0.
  • CApply route-map vlan10_to_ISP_2 on RA Ge2/1.
  • DApply route-map vlan10_to_ISP_2 on RA Ge1/20.

How the community answered

(57 responses)
  • A
    12% (7)
  • B
    23% (13)
  • C
    58% (33)
  • D
    7% (4)

Explanation

There is an important mismatch to flag here: the simulation describes an MPLS L3VPN/IPv6 BGP lab (CE, PE, RR topology), but the answer choices reference a route-map on router "RA" with interfaces like Ge1/10, Ge2/0, Ge2/1, and Ge1/20. These choices appear to belong to a different question that has been paired with this simulation description, which is a known formatting issue in some Cisco exam banks.

Taking the choices at face value: the route-map name vlan10_to_ISP_2 signals that it controls routes from VLAN 10 outbound toward ISP 2. In a typical dual-ISP topology, Ge2/1 is the interface facing ISP 2, making it the correct outbound policy application point - applying it there ensures the route-map filters/manipulates only the traffic destined for that specific upstream neighbor.

  • A (Ge1/10) is wrong because Ge1/x interfaces typically face the LAN or internal VLANs, not an ISP uplink.
  • B (Ge2/0) is likely the ISP 1 uplink - wrong ISP, wrong interface for a policy named _ISP_2.
  • D (Ge1/20) is another LAN-side interface, not an upstream ISP link.

Memory tip: Match the route-map name to the interface - if the policy says _ISP_2, it belongs on the interface facing ISP 2. The Ge2/x range signals WAN/uplink in most exam topologies; Ge1/x signals LAN/access.

Topics

#policy-based routing#route-map#lab simulation#VLAN

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