Monitoring Network Learning Notes (5) - Physical Layer & Media

Method of learning notes (5) – Physical layer and media

模拟信号

 

 

Digital signal

 

 

Media type

 

 

 

 

 

Comparison

 

 

 

Wired Media

  • Copper cable (Ethernet cable)

    • Non-masked twisted pair

    • Shield twisted pair

  • Copper coaxial cable

  • Cable

 

 

Copper Medium – Ethernet

UTP

 

 

STP

 

 

Crosstalk

 

 

Cable

 

 

Copper VS fiber

 

 

Wireless media

  • Coverage

  • Interference

  • Security

 

 

Wireless technology

 

 

Line configuration

Point-to-point

 

 

One-to-many