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Question 17 - JN0-683 discussion

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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
Answers
A.
set protocols isis interface irb.100 passive
B.
set vlans VLAN-100 13-interface irb.100
Answers
B.
set vlans VLAN-100 13-interface irb.100
C.
set bridge-domains VLAN-100 routing-interface irb.100
Answers
C.
set bridge-domains VLAN-100 routing-interface irb.100
D.
set protocols ospf area 0.0.0.0 interface irb.100 passive
Answers
D.
set protocols ospf area 0.0.0.0 interface irb.100 passive
Suggested 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.

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asked 18/09/2024
paloma giraudo
34 questions
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