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Cisco Meraki Documentation

Switch Settings

Configure > Switch Settings is where you can configure global switch settings such as the management VLAN, spanning tree for the switch stack, quality of service, and port mirroring. 

Management VLAN

By default, the switch will try to contact Meraki Dashboard on the untagged (native) VLAN. Alternately, you can specify the management VLAN under Configure > Switch settings. This allows the switch to reach the internet via a trunk port. 

Assigning a static IP address and/or VLAN to a switch will override management VLAN settings configured on this page.

If you change the management VLAN and the switch can no longer obtain a DHCP lease or reach Meraki Dashboard, the switch will revert to its previous management VLAN configuration.

If your network does not allow the native VLAN or any of the default VLANs to DHCP or connect to the internet, you will need to manually assign a management VLAN. To do this, place the switch on a network running DHCP, then from dashboard navigate to Monitor >> Switches and select the target switch. From the details page, choose "Set IP Address" and save your changes.

An Alternate Management Interface can also be configured to source management traffic such as Syslog messages and communication with RADIUS servers from a different VLAN.

Rapid Spanning Tree Protocol (STP/RSTP)

RSTP/STP helps prevent network loops by creating a loop-free network topology. For details on how to configure spanning tree, check out our Configuring Spanning Tree on Meraki Switches article.

Quality of Service (QoS)

For more information on implementing QoS, please refer to this article

For additional details about how the MS handles QoS, see the Knowledge Base

Multicast Settings

IP multicast is a method of sending Internet Protocol (IP) datagrams to a group of interested receivers in a single transmission; helping to save throughput as the traffic is sent from the source once in total. MS switches can forward IGMP traffic and will run IGMP snooping by default, with certain MS switches also supporting multicast routing. For more information regarding multicast on the MS, please refer to the Multicast support article. 

Port Mirroring

Port Mirroring has moved in Dashboard to be on the switch port page, documentation can be found here.

MTU Configuration

The Meraki MS Series supports jumbo frames up to 9578 bytes. You can set an MTU size for the entire network (9578 bytes by default) of switches as well as change the MTU settings for individual switches. The network default will apply to all switches that don't have an individual value set, including any new switches added.

If you would like to disable support for Jumbo Frames and use Ethernet defaults you can do so by configuring an MTU size of 1500 bytes.

The maximum MTU on MS425 is 9416 bytes.

The maximum MTU on MS390/C9300/C9300X/C9300L switches is 9198 bytes

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