Troubleshooting Cisco Data Center Infrastructure Exam: EVPN Routes for Access Leaf to Spine Connection

EVPN Routes for Access Leaf to Spine Connection

Question

An engineer troubleshoots a packet flow from an access leaf to a spine.

Which EVPN routes are expected on this connection?

Answers

Explanations

Click on the arrows to vote for the correct answer

A. B. C. D.

A.

In a Cisco data center infrastructure, E VPN (Ethernet VPN) is used to provide Layer 2 and Layer 3 connectivity between endpoints across a network fabric. When troubleshooting a packet flow from an access leaf to a spine, the engineer needs to understand the E VPN routes that are expected on this connection.

E VPN uses various types of routes to advertise and learn MAC and IP address information across the network fabric. The E VPN route types that are expected on the connection between an access leaf and a spine depend on the configuration and features enabled in the network.

Let's review the answer choices and the E VPN route types they include:

A. E VPN Type 1-5 This answer choice includes E VPN Type 1, 2, 3, 4, and 5 routes. These E VPN route types are used for advertising MAC address information, multicast Ethernet frames, IP prefixes, and VPN-related information. However, it is not clear whether all of these E VPN route types would be expected on a connection between an access leaf and a spine.

B. E VPN Type 0, 9, and 15 This answer choice includes E VPN Type 0, 9, and 15 routes. E VPN Type 0 routes are used for advertising MAC address information, while E VPN Type 9 and 15 routes are used for advertising IP prefixes. These E VPN route types are commonly used in a Cisco data center infrastructure, and it is possible that they would be expected on a connection between an access leaf and a spine.

C. E VPN Type 9-15 This answer choice includes E VPN Type 9, 10, 11, 13, and 15 routes. These E VPN route types are used for advertising IP prefixes and VPN-related information. While it is possible that these E VPN route types may be expected on a connection between an access leaf and a spine, it is not clear whether any MAC address information would be included in the advertised routes.

D. E VPN Type 0 and 16 This answer choice includes E VPN Type 0 and 16 routes. E VPN Type 0 routes are used for advertising MAC address information, while E VPN Type 16 routes are used for advertising Ethernet AD per ES. It is possible that these E VPN route types would be expected on a connection between an access leaf and a spine.

In summary, based on the information provided, it is difficult to determine with certainty which E VPN route types would be expected on a connection between an access leaf and a spine in a Cisco data center infrastructure. However, answer choices B and D seem to include E VPN route types that are commonly used for advertising MAC and/or IP address information in this type of network.