A network engineer needs to design Layer 2 connectivity for a subnet between two data centers using VXLAN with Cisco Nexus switches. The engineer must ensure seamless host mobility and optimal first-h

The correct answer is C. anycast. Cisco’s VXLAN Anycast Gateway uses the same virtual MAC address on the IRB interfaces in both data centers. Synchronizing that Anycast MAC ensures that hosts in either site always see the same default-gateway MAC - preserving ARP entries during VM moves and providing optimal, loc

Data Center Network Design

Question

A network engineer needs to design Layer 2 connectivity for a subnet between two data centers using VXLAN with Cisco Nexus switches. The engineer must ensure seamless host mobility and optimal first-hop routing. Which gateway MAC attribute must be synchronized across both data centers?

Options

AHSRP
BVRRP
Canycast
Dmulticast

How the community answered

(27 responses)

A
11% (3)
B
7% (2)
C
78% (21)
D
4% (1)

Explanation

Cisco’s VXLAN Anycast Gateway uses the same virtual MAC address on the IRB interfaces in both data centers. Synchronizing that Anycast MAC ensures that hosts in either site always see the same default-gateway MAC - preserving ARP entries during VM moves and providing optimal, local first-hop routing.

Topics

#VXLAN#Data center interconnect#Anycast gateway#Host mobility

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