Domain profile changes for 6400 Series Fabric Interconnect with 25G may result in server port failure

This incident has been resolved.

A fix has been implemented and we are monitoring the results.

The fix is continuing to be deployed to devices.

Adding a new chassis/rack to 6400 Series Fabric Interconnect with 25G speed and copper cables may not succeed.

If modifying or adding new server ports to existing domains only the modified/added ports will be affected.

An issue has been identified and a fix is being deployed.

6400 Series Fabric Interconnect with 25G speed configurations using copper cables are affected.

Existing domains are not affected until changes are performed (modify/add).

Avoid domain profile changes, including adding new chassis/racks until the fix has been deployed to all devices.