HPE Aruba Networking Certified Expert - Campus Access Switching (HPE7-A06)Demo

By HP · Question Mode

QuestionQ91

Switching

Refer to the exhibit.

Question Image

After deploying a distributed overlay with distributed anycast gateways, you observe that excessive ARP packets are replicated to every access (leaf) switch.

Which command can be used to optimize the network?

  • A vlan 10 arp-suppression vlan 11 arp-suppression
  • B evpn arp-suppression
  • C evpn ip proxy-arp
  • D interface vlan 10 ip proxy-arp interface vlan 11 ip proxy-arp
Explanation

EVPN ARP suppression uses IP-to-MAC bindings learned locally and through BGP EVPN to answer known ARP requests at the originating leaf. This prevents those requests from being flooded across the Layer 2 overlay to every access leaf; only unresolved entries, such as silent hosts, require broadcast forwarding. Cisco documents ARP suppression as the mechanism that minimizes ARP flooding in a VXLAN EVPN fabric.

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