The circuit was GBP and interface down.

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SoftBankSupportTeam-1329 asked Mar 25, '22 SaiKishor-MSFT commented Mar 31, '22

The circuit was GBP and interface down.

We detected the alarm which was "the circuit was bgp and interface down" at 2022/03/25 08:48(JST). It has recovered now.We would like to know did you do any maintenance during the above time?and would you confirm that is this maintenance related to this issue?please refer to below maintenance announce ====Important notice: scheduled maintenance on Microsoft Enterprise edge router for Azure ExpressRoute

You're receiving this email because you use Microsoft Enterprise edge routers with Azure ExpressRoute.

Starting in two weeks, we'll perform scheduled maintenance for Microsoft Enterprise edge routers. Each ExpressRoute circuit consists of two connections to two Microsoft Enterprise edge routers from the connectivity provider or your network edge to provide redundancy and high availability during outages. When maintenance occurs on one edge router, the other (redundant) edge router takes over, ensuring minimal impact to traffic flow.

Maintenance of the edge routers is planned for two work windows as indicated in the following table:

Location

Device Type

Maintenance Windows for Router Pairs (UTC)

Tokyo 2

Primary

25 March 2022 12:00 UTC - 25 March 2022 16:00 UTC

Secondary

25 March 2022 02:00 UTC - 25 March 2022 06:00 UTC

Before maintenance occurs, verify your connectivity over ExpressRoute as explained in ExpressRoute redundancy requirements. For information about the ExpressRoute architecture, see the ExpressRoute overview.

If you have any questions or experience issues during maintenance, please contact us.

best regards,Softbank GSD

azure-expressroute

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Answer 1 · 2022-03-25T17:51:15.807Z

SaiKishor-MSFT answered Mar 25, '22 SaiKishor-MSFT edited Mar 25, '22

@SoftBankSupportTeam-1329 Thank you for reaching out to Microsoft Q&A. I understand that you are having questions related to your Express Route circuit being down recently and whether it is related to the maintenance or not.

You can refer to your recent maintenance history as shown here- https://docs.microsoft.com/en-us/azure/expressroute/maintenance-alerts#view-past-maintenance

I would encourage you to view the same to validate if the time when the BGP went down matches with the maintenance window. Hope this helps.

Please let us know if you have any further questions and we will be glad to assist you further. Thank you!

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