Before revision:  In particular, we propose three main approaches to modify the structure of a classic BCube topology used as a benchmark. The associated structural features and maximum achievable interconnected bandwidth of these modifications is studied for various routing scenarios.
After revision:  In particular, we propose three main approaches to modify the structure of a classic BCube topology as a topology benchmark, and investigate their associated structural features and maximum achievable interconnected bandwidth of these modifications is studied for various routing scenarios.