What is the focus of the restrictions placed on access to cabling used for communication?

The restrictions placed on access to cabling used for communication primarily aim to prevent unauthorized physical access. This is crucial in the context of Critical Infrastructure Protection, as it ensures that only authorized personnel can interact with or modify the communication infrastructure, which could otherwise be susceptible to tampering, sabotage, or unintentional damage. By safeguarding access to cabling, organizations can protect the integrity of their communication systems, maintain data confidentiality, and ensure reliability in operations, all of which are fundamental to the security and resilience of critical infrastructure.

While enhancing network performance, limiting personnel on-site, and reducing physical security costs may have their own merits, they do not directly address the primary concern of protecting the physical assets from unauthorized interactions. The focus on access restrictions is fundamentally about safeguarding the systems that are vital for secure and reliable communications within critical infrastructure environments.