Switch Storm Control Configuration

Dashboard Location: Switching > Configure > Switch Settings > Storm Control

Network Traffic Flood Protection

Switch storm control configuration in Meraki networks provides administrators with comprehensive network protection against traffic flooding scenarios, enabling broadcast storm prevention, multicast flood mitigation, unknown unicast control, and network stability maintenance. This functionality supports threshold-based traffic limiting, automatic suppression mechanisms, network performance protection, and operational continuity assurance. Storm control is essential for preventing network outages, maintaining bandwidth availability, protecting network resources, and ensuring reliable network operations in enterprise environments.

Diagram

Classes

switch (meraki.domains.organizations.networks)

Name	Type	Constraint	Mandatory	Default Value
storm_control	Class	`[storm_control]`	No

storm_control (meraki.domains.organizations.networks.switch)

Name	Type	Constraint	Mandatory
broadcast_threshold	Integer	min: `1`, max: `99`	No
multicast_threshold	Integer	min: `1`, max: `99`	No
unknown_unicast_threshold	Integer	min: `1`, max: `99`	No
treat_these_traffic_types_as_one_threshold	List	Choice[`broadcast`, `multicast`]	No

Examples

Example-1: The example below demonstrates switch storm control configuration.

This configuration implements network protection against broadcast, multicast, and unicast traffic storms. The example includes threshold settings and storm prevention policies to maintain network stability and performance.

This configuration establishes traffic flood protection using “storm_control” parameters with “broadcast_threshold”, “multicast_threshold”, and “unknown_unicast_threshold” values (percentage of total bandwidth) for limiting excessive traffic flows. Each threshold setting (30% in this example) defines the maximum bandwidth percentage that broadcast, multicast, or unknown unicast traffic can consume before suppression mechanisms activate, preventing network congestion, maintaining operational stability, and protecting against network storms caused by loops, misconfigurations, or malicious traffic patterns while preserving legitimate network communications.

meraki:
  domains:
    - name: !env domain
      administrator:
        name: !env org_admin
      organizations:
        - name: !env org
          networks:
            - name: !env network_name
              product_types:
                - appliance
                - switch
                - wireless
                - camera
                - sensor
                - cellularGateway
              switch:
                storm_control:
                  broadcast_threshold: 30
                  multicast_threshold: 30
                  unknown_unicast_threshold: 30