SDN Flow Rule Builder

SDN Flow Rule Builder

Design Software-Defined Network Rules

SDN Flow Rule Lab

Install OpenFlow-style rules, send a deterministic IoT packet through the ingress switch, and inspect how priority, match fields, and actions decide the outcome.

Try

Set Priority to 100, Match Protocol to TCP, and Action to Forward before Install Rule and Play Packet.

Observe

Watch priority, match fields, action, counters, and default behavior select the outcome.

Explain

Priority 100 selects the winning match; wildcard fields broaden its packet set and can shadow a safer lower rule.

Technical boundaries. The packet outcome follows simplified ordered match-action rules. It does not emulate an OpenFlow switch pipeline, table transitions, meters, group tables, controller delay, race conditions, hardware capacity, TLS control channels, or distributed-policy consistency.

Goal

Build SDN policies that make packet handling explicit and testable.

Try

Load a scenario, press Play Packet, then add or remove 1 rule.

Watch

Compare the matched rule, rule priority, conflicts, and validation checks.

Reflect

Which rule should win when a broad rule and a specific rule both match?

Guided Investigation

1. Start with MQTT Priority and simulate the sensor packet.
2. Add a broad drop rule with a higher priority and observe the changed decision.
3. Use Check Policy to identify equal-priority conflicts and unsafe broad forwarding.

Scenario Focus

MQTT Priority gives sensor telemetry a higher-priority queue while still preserving a lower-priority fallback rule.

Scenario Presets

Ready: MQTT Priority loaded

Rule Composer

Ingress Switch

Priority

Match Source

Match Destination

Match Protocol

Match Port

Action Forward Drop Enqueue QoS Modify Header

Output or Queue

Idle Timeout

Policy Driver Telemetry QoS Segmentation Industrial safety Incident response Bandwidth control

A high-priority MQTT rule should match only the sensor-to-broker path and send it to a low-latency queue.

Traffic Probe

Packet Source

Packet Destination

Packet Protocol

Packet Port

Policy Metrics

0

Rules

--

Last Decision

0

Conflicts

0/6

Switch Coverage

Controller Topology

SDN Controller

Diagnosis

Simulate a packet or validate the policy to inspect the decision path.

Installed Rules

Flow Table

Switch	Priority	Match	Action	Packets

Packet Decision Trace

Step	Evidence	Result

Validation Checks

Check	Evidence	Status

Priority Review

Question	Evidence	Result