AWS Certified Advanced Networking Specialty Practice Exam

What is the maximum number of connections allowed in a Link Aggregation Group (LAG) for connections less than 100G?

1. 2

2. 4

3. 8

4. 12

The correct answer is: 4

The maximum number of connections allowed in a Link Aggregation Group (LAG) for connections that are less than 100G is 4. This aligns with the standards defined by the IEEE 802.1AX (formerly 802.3ad) protocol, which allows for multiple links to be bundled together to provide redundancy and increased bandwidth. In scenarios where individual links are operating at speeds less than 100G, configuring up to 4 connections in a LAG enables efficient load balancing and fault tolerance. This limitation supports effective traffic distribution while minimizing potential issues such as broadcast storms or connection mismatches, which can occur with higher numbers of aggregated links. When considering connections of 100G or more, different parameters apply, which allow for more aggregated links, but for sub-100G connections, maintaining this limit of 4 ensures stability for the aggregated traffic without overwhelming the network's control protocols.