February 16, 2023, Beijing Time, Classic Load Balancer (CLB) Migration Upgrade Notice
Upgrade content: upgrade of certain CLB in China (Hangzhou-C zone) region
Upgrade impact: during the upgrade window, there may be 2-4 times of disconnection when accessing certain of your CLB instances from network (please check message or email sent to you for the list of affected instances, if you do not receive any short message, system message or email, none of your instances will be affected), each disconnection is expected to last within 30 seconds. The client will automatically recover after reconnect, please implement reconnection and retry mechanism in client portal. We apologize for any convenience caused to you.
Alibaba Cloud will arrange for engineers on duty, should you have any questions, please contact us by submitting a ticket (Contact US).