Verify your connections

To check connectivity between your Google Cloud and Alibaba networks, complete the following tasks.

Check for a signal from Alibaba

In Google Cloud, check to see whether your Cross-Cloud Interconnect port is receiving a signal from the Express Connect port.

In the Google Cloud console, go to the Cloud Interconnect Physical connections page.
Go to Physical connections
Click the name of your primary Cross-Cloud Interconnect connection.
On the Interconnect details page, locate the Link circuit info table. Check the Receiving Optical Power column. This column indicates whether the Cross-Cloud Interconnect connection is receiving input from the Alibaba port. The value in this column should be OK.
Repeat the preceding steps for your redundant Cross-Cloud Interconnect connection.

For additional guidance, see Troubleshooting.