Why is link integrity important in microwave backhaul installations?

Link integrity is crucial in microwave backhaul installations primarily because it prevents data loss during transmission. In microwave communication, the integrity of the link directly affects the quality and reliability of the data being transmitted. If the link is compromised due to interference, physical obstructions, or other factors, packets of data can be lost or corrupted, leading to incomplete or incorrect information reaching its destination. Ensuring link integrity means that the communication channels remain stable and effective, maintaining a steady flow of information without loss, which is vital for the performance of any communication network.

The other options address different aspects of network performance or security but do not directly relate to the core issue of data transmission integrity. While network speed is important, it is not the primary focus of link integrity. Physical security and user access levels pertain to different areas of network management and security, rather than the integrity of data transmissions themselves.