---
description: Configure alerts for Magic Transit events.
title: Alerts
image: https://developers.cloudflare.com/og-docs.png
---
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# Alerts
Last updated Aug 25, 2026|Copy as Markdown| [View as Markdown](https://d1-custom-bindings-docs.previews.developers.cloudflare.com/magic-transit/alerts/index.md)| [Agent setup](https://d1-custom-bindings-docs.previews.developers.cloudflare.com/agent-setup/)
You can configure alerts to receive notifications for changes in your network.
Network Flow - Auto Advertisement
**Who is it for?**
Magic Transit on-demand customers who use Flow-Based Monitoring and want alerts when Magic Transit is automatically enabled.
**Other options / filters**
None.
**Included with**
Purchase of Magic Transit.
**What should you do if you receive one?**
No action is needed. You can go to the Cloudflare dashboard to review the health and status of your tunnels.
Network Flow - DDoS Attack
**Who is it for?**
BYOIP and Spectrum customers with Network Analytics who want to receive a notification when Cloudflare has mitigated attacks that generate an average of at least 12,000 packets per second over a five-second period, with a duration of one minute or more.
**Other options / filters**
None.
**Included with**
Purchase of Magic Transit and/or BYOIP.
**What should you do if you receive one?**
No action needed. Refer to DDoS alerts for more information.
Network Flow - Volumetric Attack
**Who is it for?**
Magic Transit on-demand customers who are using Flow-Based Monitoring to detect attacks when Magic Transit is disabled.
**Other options / filters**
None.
**Included with**
Purchase of Magic Transit.
**What should you do if you receive one?**
If you do not have auto advertisement enabled, you need to advertise your IP prefixes to enable Magic Transit. For more information, refer to Dynamic advertisement.
Magic Tunnel Health Check Alert
**Who is it for?**
Magic Transit and Cloudflare WAN customers who wish to receive alerts when the percentage of tunnel states meeting the selected service-level objective (SLO) drops below the defined threshold for a Magic Tunnel.
**Other options / filters**
- Notification Name: A custom name for the notification.
- Description (optional): A custom description for the notification.
- Notification Email (can be multiple emails): The email address of recipient for the notification.
- Webhooks
- Tunnels: Choose one or more tunnels to monitor.
- SLO: Define SLO threshold for Magic Tunnel health alerts. Available options are *High*, *Medium*, and *Low*.
**Included with**
Purchase of Magic Transit and Cloudflare WAN.
**What should you do if you receive one?**
Refer to the Magic Transit tunnel health or Cloudflare WAN IPsec/GRE tunnel health for more information on what the issue might be.
Refer to [Cloudflare Notifications](https://d1-custom-bindings-docs.previews.developers.cloudflare.com/notifications/get-started/) for more information on how to set up an alert.
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## On this page
[Docs](https://d1-custom-bindings-docs.previews.developers.cloudflare.com/)
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