Below is an announcement we got from our provider.
ASR9K Code Upgrade Planned Network Maintenance
Dear Cogent Customer,
As a valued customer, Cogent is committed to keeping you informed about any changes in the status of your service with us. This email is to alert you regarding maintenance we will be performing on our network:
Start time: 03/28/26 at 00:01 - America/New_York (04:01 UTC)
End time: 03/28/26 at 06:00 - America/New_York (10:00 UTC)
Work order number: NC826-310
Order ID(s) impacted: 3-001545570
Expected Outage/Downtime: 2-6 hours
Cogent customers receiving service at
99 TW ALEXANDER DR
55125-0
DURHAM, NC 27709
US
will be affected by this maintenance. Only the Cogent Order ID(s) listed above will be impacted. The purpose of this work is to apply and activate software module upgrades on code running on the edge routers per the manufacturer's recommendations.
During this maintenance window, you may experience two or more interruptions in service while we complete the maintenance activities. However, due to the complexity of the work, your downtime may be longer. Customers may also see some re-convergence during the maintenance window. Customers may experience latency and packet loss intermittently throughout the window.
We encourage all our customers to please check our network status page http://status.cogentco.com/ which includes any code upgrades that are occurring in the next 48hrs.
Our network operations engineers closely monitor the work and will do everything possible to minimize any inconvenience to you.
We appreciate your patience during this work and welcome any feedback. Please send all questions and concerns to mailto:support@cogentco.com
Thank you for being a Cogent customer.
Sincerely,
Customer Support
Cogent Communications
Tuesday, March 24, 2026
