An investigation will be conducted into the failures occurring in the backbone network.

During the investigation, communication interrupts will occur several times from a few seconds to a maximum of 5 minutes.

In addition, communication may become unstable due to failure.

We appreciate your cooperation in the stable operation of the backbone network.

Date and Time : Sunday, July 10, 2022, 09:00-17:00

Work Contents： Investigation of backbone network failures

Impact： Communication will be interrupted in the backbone network for a few seconds to 5 minutes.