In this scenario, which command would you use to accomplish this task?

You want to convert an MX Series router from a VXLAN Layer 2 gateway to a VXLAN Layer 3 gateway for VNI 100. You have already configured an IRB interface.

In this scenario, which command would you use to accomplish this task?
A . set protocols isis interface irb.100 passive
B . set vlans VLAN-100 13-interface irb.100
C . set bridge-domains VLAN-100 routing-interface irb.100
D . set protocols ospf area 0.0.0.0 interface irb.100 passive

View Answer

Answer: C

Explanation:

Scenario Overview:

Converting an MX Series router from a VXLAN Layer 2 gateway to a VXLAN Layer 3 gateway involves transitioning the router’s functionality from simply bridging traffic within a VXLAN segment to routing traffic between different segments.

Key Configuration Requirement:

IRB (Integrated Routing and Bridging) Interface: An IRB interface allows for both Layer 2 switching and Layer 3 routing. To enable routing for a specific VNI (VXLAN Network Identifier), the IRB interface must be associated with the routing function in the corresponding bridge domain.

Correct Command:

C. set bridge-domains VLAN-100 routing-interface irb.100: This command correctly binds the IRB interface to the bridge domain, enabling Layer 3 routing functionality within the VXLAN for VNI 100. This effectively transitions the device from operating solely as a Layer 2 gateway to a Layer 3 gateway.

Data Center

Reference: This configuration step is essential when converting a Layer 2 VXLAN gateway to a Layer 3 gateway, enabling the MX Series router to route between VXLAN segments.