300-610 DCID: Designing Cisco Data Center InfrastructureDemo

By Cisco · Question Mode

QuestionQ47

Network Design

An engineer needs to use OTV to provide Layer 2 connectivity between data centers in support of virtual machine mobility between customer sites. To meet this requirement, the engineer must ensure that the same default gateway exists at both sites. In addition, the operations team reports high bandwidth utilization at site A and wants to optimize outbound traffic flows so they use a local DC exit point.

Which feature must be used to fulfill these requirements?

  • A data group
  • B FHRP filter
  • C ARP filter
  • D control group
Explanation

OTV FHRP filtering prevents HSRP, VRRP, or similar FHRP control messages from traversing the overlay. Each data center can therefore maintain a local active default gateway with the same virtual IP and MAC address, which preserves gateway continuity for mobile virtual machines and keeps outbound traffic on the local exit path.

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