High Speed - Maximum Via Count

Now reading version 18.1. For the latest, read: High Speed - Maximum Via Count for version 21

Rule category: High Speed

Rule classification: Unary


This rule specifies the maximum number of vias permitted for each individual net in the current design.

Use appropriate rule scoping to target a specific net (or collection of nets), using query expression keywords such as InNet, InNetClass, or In AnyNet.
All design rules are created and managed within the PCB Rules and Constraints Editor dialog. For a high-level view of working with the design rules system, see Defining, Scoping & Managing PCB Design Rules.


Default constraints for the Maximum Via Count rule.Default constraints for the Maximum Via Count rule.

  • Maximum Via Count - the maximum number of vias permitted in each individual net falling under the defined scope of the rule.

How Duplicate Rule Contentions are Resolved

All rules are resolved by the priority setting. The system goes through the rules from highest to lowest priority and picks the first one whose scope expression matches the object(s) being checked.

Rule Application

Online DRC and Batch DRC.

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