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300-420 · Question #237

Refer to the exhibit. An architect must design a solution to connect bank site A with bank site B and support: - network operation center monitoring end-to-end L3VPN and L2VPN traffic - company…

The correct answer is C. Connect multiple IGP/LDP domains using a BGP IPv4 unicast family on the ABR. E. Transport site routes using a BGP VPNv4 address family on the PE routers. Option C - This is a suitable solution as it enables connecting different IGP domains at the ABR (Area Border Router) level using BGP for inter-domain routing. This provides a scalable solution for managing the growing number of routes and interconnecting bank sites A and B…

WAN for Enterprise Networks

Question

Refer to the exhibit. An architect must design a solution to connect bank site A with bank site B and support:

  • network operation center monitoring end-to-end L3VPN and L2VPN

traffic

  • company adding thousands of routes in the next two years

Which two BGP solutions must the design include? (Choose two.)

Exhibit

300-420 question #237 exhibit

Options

  • AEstablish full mesh IBGP peering with all routers in different IGP domains.
  • BRedistribute different IGP domain routes in a BGP IPv4 routing instance.
  • CConnect multiple IGP/LDP domains using a BGP IPv4 unicast family on the ABR.
  • DApply BGP policies on all routers to filter out ABR and PE loopback IP addresses.
  • ETransport site routes using a BGP VPNv4 address family on the PE routers.

How the community answered

(34 responses)
  • A
    6% (2)
  • B
    3% (1)
  • C
    82% (28)
  • D
    9% (3)

Explanation

Option C - This is a suitable solution as it enables connecting different IGP domains at the ABR (Area Border Router) level using BGP for inter-domain routing. This provides a scalable solution for managing the growing number of routes and interconnecting bank sites A and B. Option E - Transport site routes using a BGP VPNv4 address family on the PE routers - This is a suitable solution as it enables transporting both L3VPN and L2VPN traffic using the BGP VPNv4 address family on the Provider Edge (PE) routers. This provides the necessary support for end- to-end traffic monitoring and scalability as the company adds thousands of routes in the future.

Topics

#MPLS L3VPN#BGP VPNv4#Multi-domain BGP#WAN Design

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