# Alert Suppression using Site Links

### Overview

Alert suppression effectively disables alerts for a location when the following conditions are met:

1. Main bearers are marked as a Site Link (done by an admin user)
2. All Site Link bearers at the location are alerting for stability

Alerts will be sent for the main Site Link bearers only. Alerts for other bearers, performance tests and other associated watches will be suppressed.

Note: Alert suppression is automatically applied for any location with at least two bearers marked as Site Links.

### How it works

This feature is explained with the following example.

Currently, the location tile for Data Centre is showing as red for stability issues.

<figure><picture><source srcset="https://25768351-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F68Wb63XzG9guH74bkPEb%2Fuploads%2FmgtEVPTMcb5BbRc9F35Y%2FHeatTileDataCentre-Dark.png?alt=media&#x26;token=d928bdcc-e468-4088-92b2-b589c1640465" media="(prefers-color-scheme: dark)"><img src="https://25768351-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F68Wb63XzG9guH74bkPEb%2Fuploads%2FyZQU0Keux8z0MQdY3GSF%2FHeatTileDataCentre-Light.png?alt=media&#x26;token=19d17520-8781-40c3-be36-6e68aea03b8c" alt="Data Centre Heat Tile"></picture><figcaption></figcaption></figure>

The location Data Centre has two main bearers (DC Primary & DC Secondary) marked with a Site Link check on the Admin, Edit watch dialog.

<figure><picture><source srcset="https://25768351-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F68Wb63XzG9guH74bkPEb%2Fuploads%2FISAcfRMZSnfIF3k6fgU6%2FEditWatchSiteLink-Dark.png?alt=media&#x26;token=8b6576d9-e4a8-4491-b113-971bc7418a62" media="(prefers-color-scheme: dark)"><img src="https://25768351-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F68Wb63XzG9guH74bkPEb%2Fuploads%2FFZu7FkDLtLW6nVhlrX3I%2FEditWatchSiteLink-Light.png?alt=media&#x26;token=62b217f1-acc7-4756-9aaa-1ace41e94094" alt="Edit Watch Site link"></picture><figcaption></figcaption></figure>

* DC Primary has two associated performance tests.
* DC Secondary has two associated performance tests and one VLAN.
* There is one other bearer at this location, a Wireless Controller with two associated WAPs. This controller is not marked as a Site Link.
* There are 10 watches in total at this location.

Email alerts have been set for the folder (KFV Services) which contains the location Data Centre. Find about more about [alerting.](https://support.highlight.net/help/Status/alerting)

<figure><picture><source srcset="https://25768351-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F68Wb63XzG9guH74bkPEb%2Fuploads%2FmDQooXympH9jK1hifZ48%2FAlertSiteLink-Dark.png?alt=media&#x26;token=528255a5-c4fd-4786-928b-f7fcf92b0978" media="(prefers-color-scheme: dark)"><img src="https://25768351-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F68Wb63XzG9guH74bkPEb%2Fuploads%2FgyIlLq3GaoMaoY5V2j7k%2FAlertSiteLink-Light.png?alt=media&#x26;token=fb7cdf9b-09fb-4116-b82a-b257dec863d8" alt="Alert for Site Link"></picture><figcaption></figcaption></figure>

Previously, if both main Site Link bearers were down for stability, your inbox might contain alerts for each bearer, all tests and other associated watches. In this example, nine 'Alert when issue starts' emails could have been sent. With alert suppression, only two emails are sent, one for each Site Link bearer.

Alerts will be suppressed for:

* other bearers at this location (in this example, the Wireless Controller)
* for any associated performance tests
* other associated subwatches

until either of the main bearers are once again green for stability. You may still receive 'Alert when issue clears' emails at this point. Note: If Webhook or SNMP trap alerts have been set up, these will also be suppressed.


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