Marked down code#
Response Code Mismatch: HTTP health checks may be configured to expect a specific response code, such as 2xx.
The expected content appears in the client browser, but from Avi Vantage’s perspective the client received a redirect. Often this type of error occurs when a server’s first response is to send a redirect to a client. In the example, an excerpt of the server’s response is shown. Payload Mismatch: The health monitor expects specific content to be returned in the body of the response (HTTP or TCP).ARP Unresolved: The Service Engine was unable to resolve the MAC address of the server’s IP address (when in the same layer 2 domain) or was unable to initiate a TCP connection (when the server is a layer 3 hop away).
Marked down plus#
Click the plus sign next to the health monitor to show additional information regarding the server’s health status.Ĭommon Reasons a Server May Be Marked Down
Instead, if a passive monitor detects bad server-to-client responses, the monitor reduces the percentage of traffic load balanced to that server. A passive monitor will not mark a server down. Note: The Passive monitor is a special type. In this example, the “Down-HTTP” monitor is marking the server down, whereas the “System-HTTP” monitor is reporting the server as up. This displays the analytics page for the server. Server Page: Navigate to Applications > Pools > pool-name > Servers > server-name.This information can be used to automatically generate an alert and potentially make further system changes. Down Event: Navigate to the events for the server, the pool, the virtual service.Down Health Score Icon: Hover the mouse over a server’s red status icon in the UI.All methods show roughly the same information. The reason a server is marked down may be accessed three different ways. Avi Vantage may mark a server down for a number of reasons. The status is determined by the associated health monitors applied to the server pool. Servers within a pool may have a status of up, down, or disabled (administratively disabled by an administrator).
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