This will likely involve installing some overhead infrastructure and trays that let you route fiber cables from the edge of your cage to each of your racks, and to route cables between racks. Because our racks have dense switch-to-server fiber cabling in each rack, we buy switches that have their ports oriented to the back of the rack (these are called reverse airflow switches because they exhaust air on the side with the network ports). This allows us to align the cable trays such that all cabling happens on one side of the rack and there’s no zig-zagging of cables between the front and back of the rack.