Since there is an inherent trade-off between the amount of available bandwidth and the distance that a signal can travel, the more bandwidth is available, the farther a signal can travel.

既然在可用带宽数量与信号能够传播的距离之间存在固有的平衡，那么，可用带宽越多，信号就能够传播得更远。

youdao

But depending on your transaction rate, off-site replication may be limited by the available bandwidth, and even by distance.

FORBES: Disaster Recovery in the Cloud