LEDstrip patterns

Could not connect to the redirect server, most likely due to a firewall blocking TCP port 443, TCP port 2200. See also Ports to Open in Your Firewall.

The following table tells what the different blinking CLD LED patterns mean and what you can do to address it. In addition to observing the physical switch, you can also assess the status from the Junos CLI by issuing the show chassis led command.

LED patternLight

No response from the DNS server. The switch received an IP address for the DNS server via DHCP, but it cannot not reach the Mist cloud.

Invalid configuration on the redirect server (PHC). This device received a 500 or 404 error from the redirect server at redirect.juniper.net.

RandomLED patternwith Arduino code

Incorrect time on the switch. During ZTP, the phone home client (PHC) received a certificate with the wrong time. ZTP could not continue.

No IP Address. The DHCP server is not configured or could not be reached. Junos did not receive a DHCP lease or IP address.

LEDLightpatternideas

Note that for Virtual Chassis (VC) deployments managed from the Mist cloud, the CLD LED reflect the state of the primary, except when a software download is in progress (in which case all members of the VC will show OS upgrade blink pattern and color).​