Implementing Cisco Data Center Infrastructure (DCII, legacy) — Question 19

Within the vPC configuration of the 7K's the command peer-gateway is configured as confirmed with the command show vpc. what is the result of enabling this command?

Answer options

• A. Enable 7K-3 to act as the active gateway for packet received on VLAN 101 that are addressed to the MAC address of 7K-4
• B. Enables 7K-4 to use of the vpc peer link for forwarding packets received on VLAN 100 that are addressed to the MAC address of 7K-3
• C. Generates IP redirect messages for packets switched though the peer-gateway router
• D. Cause the HSRP active router to update the ARP table on the standby router for faster convergence after the vPC peer link has flapped
• E. Allow the vpc peers to coordinate the LACP ID with must be the same on all links on the port channel.

Correct answer: D

Explanation

Enabling the peer-gateway command allows the HSRP active router to update the ARP table on the standby router, which improves the speed of convergence when there are changes in the vPC peer link. The other options describe functionalities that do not relate to the peer-gateway command, such as packet forwarding and IP redirect messaging, which are not impacted by this specific configuration.