Table Of Contents

Queueing Tutorial

Explore the use of queueing components in INET, including traffic generators, queues, and traffic conditioners. These components can be utilized to build diverse functionalities at various layers of the protocol stack.

Introduction

• Getting Started

Sources and Sinks

• Active Source - Passive Sink
• Passive Source - Active Sink

Queues and Buffers

• Enqueueing Packets
• Dropping Packets from a Finite Queue
• Ordering the Packets in the Queue
• Storing Packets on Behalf of Multiple Queues

Classifying Packets from One Input to Multiple Outputs

• Priority Classifier
• Weighted Round-Robin Classifier
• Content-Based Classifier
• Markov-Chain-Based Classifier
• Generic Classifier

Scheduling Packets from Multiple Inputs to One Output

• Priority Scheduler
• Weighted Round-Robin Scheduler
• Content-Based Scheduler
• Markov-Chain-Based Scheduler
• Generic Scheduler

Advanced Queues and Buffers

• Priority Buffer
• Priority Queue
• Building Complex Queues via Composition

Filtering and Dropping Packets

• Content-Based Filtering (Active Source)
• Content-Based Filtering (Active Sink)
• Ordinal-Based Dropper
• RED Dropper

Actively Serving Packets from a Passive Source

• Time-Based Server
• Token-Based Server

Generating Tokens for a Token-based Server

• Generating Tokens Periodically
• Generating Tokens after Received Packets
• Generating Tokens When a Queue Becomes Empty
• Generating Tokens Based on Received Signals

Markers and Meters

• Limiting the Data Rate of a Packet Stream
• Requesting Protocol-Specific Behavior for Packets
• Requesting Protocol-Specific Behavior Based on Packet Data
• Labeling Packets with Textual Tags

Traffic Conditioning

• Leaky Bucket
• Token Bucket

Other Generic Elements

• Delaying Packets
• Connecting Multiple Active Sources to a Passive Sink
• Connecting a Passive Source to Multiple Active Sinks
• Blocking/Unblocking Packet Flow (Active Source)
• Blocking/Unblocking Packet Flow (Active Sink)
• Duplicating Packets from One Input to One Output
• Duplicating Packets Based On Their Ordinal Number
• Cloning Packets from One Input To Multiple Outputs

Advanced Sources and Sinks

• Preventing a Queue from Becoming Empty
• Example: Request/Response-Based Communication

Some Complex Examples

• Example: Generating Telnet Traffic
• Example: Simulating a Transmission Channel
• Example: Input Queue Switching
• Example: Output Queue Switching

Previous

Conclusion

Next

Getting Started