Brief information about Token Ring network
Token Ring network is a local area network (LAN) protocol that uses a token-passing method for transmitting data. In a Token Ring network, devices are connected in a physical ring, and data transmission is coordinated using a small packet, called a token, that circulates around the ring.
The History of the Origin of Token Ring Network and the First Mention of It
The concept of Token Ring was first introduced and standardized by IEEE in the 802.5 standard. IBM played a significant role in its development and commercially launched its Token Ring network in the mid-1980s. Token Ring quickly became popular as a reliable method for preventing collisions in network data transmission.
Detailed Information about Token Ring Network
A Token Ring network consists of nodes (such as computers and printers) connected in a physical ring topology. A token, a unique 3-byte frame, circulates the network. Devices must capture the token to transmit data, ensuring that only one device can transmit at a time. This method minimizes collisions and provides deterministic data transmission.
Advantages:
- Collision-Free Operation
- Deterministic Data Transmission
- Scalability
Disadvantages:
- Complexity in Installation
- Higher Costs compared to Ethernet
- Slower Speeds
The Internal Structure of the Token Ring Network
A Token Ring network is constructed with:
- Ring Interface: Connects devices in a physical ring topology.
- Token: Circulates the network, allowing only one device to transmit at a time.
- Monitoring Station: Observes the network for faults and ensures smooth token circulation.
- Repeaters and Bridges: Can be used to extend the network.
Analysis of the Key Features of Token Ring Network
- Deterministic Transmission: Ensures orderly data transmission.
- Collision-Free Operation: Minimizes data collisions.
- Robustness: Detects and isolates network faults.
Types of Token Ring Network
The following table describes different types of Token Ring networks:
| Type | Speed | Usage |
|---|---|---|
| 4 Mbps Ring | 4 Mbps | Standard office applications |
| 16 Mbps Ring | 16 Mbps | Higher bandwidth applications |
Ways to Use Token Ring Network, Problems, and Their Solutions
Token Ring found usage in:
- Corporate Networks
- Industrial Control Systems
- Educational Institutions
Common Problems:
- Ring Failure
- Token Loss
Solutions:
- Redundancy
- Monitoring and Diagnostic Tools
Main Characteristics and Other Comparisons with Similar Terms
| Feature | Token Ring | Ethernet |
|---|---|---|
| Topology | Ring | Star |
| Collision Handling | Token | CSMA/CD |
| Speed | 4-16 Mbps | 10-1000 Mbps |
| Deterministic | Yes | No |
Perspectives and Technologies of the Future Related to Token Ring Network
Though largely replaced by Ethernet, Token Ring technologies still have relevance in specific applications and are being explored in research contexts.
How Proxy Servers Can Be Used or Associated with Token Ring Network
Proxy servers can be used in a Token Ring network to facilitate communication between different network segments, enhance security, and optimize performance.
Related Links
- IEEE 802.5 Standard
- IBM’s Historical Token Ring Products
- OneProxy Services for integration with various network technologies, including Token Ring.
