This KB is related to replace a switch in your Juniper Mist™ network from the switch.

The symptoms of issues related to replacing a switch in a Juniper Mist™ network can include:

Port Issues:

• Devices connected to ports on the new switch may fail to communicate if the port configurations are not applied correctly, especially if there are mismatched port types (e.g., MGE vs. GE).

Slow Network Performance:

• After the switch replacement, users may experience slower than normal network speeds if configurations are incomplete or incorrect.

Intermittent Connectivity:

• Devices may connect and disconnect sporadically if there are issues with the new switch's configuration or compatibility.

Error Messages:

• Log files may contain error messages indicating problems with the switch replacement, such as failed configurations or port mismatches.

This article would be related to the following link: https://www.juniper.net/documentation/us/en/software/mist/mist-wired/topics/task/replace-a-switch.html

• Preparation: Ensure the old switch is claimed or adopted by your organization and assigned to a site (Connected or Disconnected state).
• The new switch should be unassigned and listed on the Inventory page with the status Unassigned.
• Replacement Steps:Navigate to Switches in the Mist portal.
• Select the switch to be replaced from the list.
• On the switch details page, choose Replace Switch from the Utilities drop-down.
• Select the MAC address of the unassigned switch from the drop-down list.
• Mist will copy the configuration from the old switch to the new one by default. Adjust configurations as needed.
• If the new switch has a different number of ports, Mist will discard the port configuration. Ensure the site template meets the new switch’s requirements.