Learn the two essential actions needed to resolve the issue of a LAG interface not being created when combining two existing interfaces. Ensure LAG is enabled on both the chassis and each member interface for a successful configuration.
Table of Contents
Question
You are combining two existing interfaces into a single LAG interface, but you do not see the LAG interface being created.
Which two actions are required to solve this problem? (Choose two.)
A. Ensure that the first LAG interface name is ae1.
B. Ensure that LAG is enabled on the chassis.
C. Ensure that LAG is enabled on each member interface.
D. Ensure that the first LAG interface name is ae0.
Answer
B. Ensure that LAG is enabled on the chassis.
C. Ensure that LAG is enabled on each member interface.
Explanation
To solve the problem of a LAG interface not being created when combining two existing interfaces, you must take the following two actions:
- Ensure that LAG is enabled on the chassis: Before creating a LAG interface, you must make sure that the Link Aggregation Group (LAG) feature is enabled on the device’s chassis. This is a crucial step, as the LAG interface will not be created if the feature is not activated at the chassis level. Enabling LAG on the chassis allows the device to support the creation and configuration of LAG interfaces.
- Ensure that LAG is enabled on each member interface: In addition to enabling LAG on the chassis, you must also enable LAG on each of the individual interfaces that will be combined to form the LAG interface. This step is essential because the interfaces will not be able to participate in the LAG if the feature is not enabled on them. By enabling LAG on each member interface, you are allowing them to be aggregated into a single logical interface.
It is important to note that the name of the first LAG interface (ae0 or ae1) is not a factor in solving this problem. The key actions required are enabling LAG on both the chassis and the individual member interfaces.
In summary, to successfully combine two existing interfaces into a single LAG interface, you must ensure that the LAG feature is enabled on the device’s chassis and on each of the member interfaces. By taking these two actions, you will be able to create the LAG interface and benefit from the increased bandwidth, redundancy, and load balancing that LAG provides.
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