It is a very scalable solution. Scalability-wise, I rate the solution a ten out of ten.
ExtremeRouting offers a highly valuable and easy-to-set-up routing protocol, excelling in redundancy for up to 10,000 users. It is notably scalable with a perfect rating. However, it faces stability and reliability issues, lacks timely evolution, and misses some latest protocols. Rapid implementation can be hindered by manufacturer backups, and more accessible training is necessary to enhance user experience.