Frame Tagging in the Link Layer on Switches

Frame tagging is a crucial function in network switches, particularly for managing VLANs $($Virtual Local Area Networks$).$ Discuss the following aspects:

Purpose and Mechanism:

Explain the purpose of frame tagging in network switches. How does it facilitate VLAN implementation and improve network management?

Tagging Standards and Protocols:

Discuss the different standards and protocols used for frame tagging, such as IEEE $802\mathrm{.}1$Q$.$ What are the key features of these protocols, and how do they differ from each other?

Impact on Network Performance:

Analyze the impact of frame tagging on network performance. How does it affect data traffic, security, and overall network efficiency?

Real$-$World Applications:

Provide examples of how frame tagging is used in real$-$world network environments. What are the benefits and potential challenges associated with its implementation?