Legacy Hub(Shared Services) VWAN Migration February 13, 2024, at 23:00:00

Presentation of the Change:

In this scheduled maintenance, we are undertaking the Shared Services VWAN Migration to complete the transition of Core Services, including ZPA with WEU App Connectors and Infoblox DNS/IPAM services, to the established VWAN infrastructure. The migration aims to enhance security, firewall filtering, and overall network observability. Users can expect a minimum downtime of 1 hour, impacting DNS Resolution and ZPA WEU pp Connectors availability.

Maintenance Details:

• Scheduled Date and Time: 2024-02-13 at 23:00:00
• Maintenance Window: 2024-02-13 at 23:00:00 to 2024-02-14 at 01:00:00
• Downtime Duration: Minimum 1 hour

Expected Impact:

• Temporary disruption of DNS Resolution and ZPA WEU connectivity for approximately 1 hour.

• During the maintenance window, Expect a downtime of up to 60 minutes during this operation for the following services :

  • DNS :

    • TDP internal resolution

      • [!IMPORTANT] The domains *.tdp.infra.thales will be unavailable during this time

      • There is no impact or disruption on domain *.ahe.tdp.infra.thales.
    • TDP External resolution

      • [!IMPORTANT] The domains *.infra.thales , *.gemalto.com and all azure forwarded DNS rule like *.blob.core.windows.net will be unavailable during this time

        • [!IMPORTANT] The DIS vHub will be affected, with disruption due to the unavailability of services during this operation carried by TDP Infoblox DNS services (Group Internal DNS resoltion *.infra.thales and *.gemalto.com.)

        • To minimize any potential disruptions, we kindly request your support in updating the TTL (Time to Live) for DNS entries related to *.gemalto.com TDP Hosted services. Extending the TTL will help mitigate any DNS-related interruptions during this maintenance period.

  • ZPA WEU App Connectors

    • [!IMPORTANT] Applications hosted in TDP Weste Europe will be unavailable during this period from the user's TNAP workstation.

Benefits:

The migration is designed to bring about improvements in security, ensure high availability, and enhance the overall observability of connectivity.

Rollback Plan as a Possible Feature:

In the event of unforeseen issues, a rollback plan has been established. Rollback procedures have been successfully tested in the DEV environment.

Action Required:

• For information CAB TDP : RITM0038407
• No specific action is required from end-users
• We would like you to take account of this scheduled maintenance and, if necessary, adjust your operational procedures to take into consideration the potential downtime.
• We apologise for any inconvenience this may cause and thank you for your understanding as we work to improve our services.

Please do not hesitate to contact our support https://postit.service-now.com/esc if you have any questions or need assistance with this maintenance.

Thank you for your cooperation.

Trustnest MCS : Managed Cloud Services - Network Backbone Team