/dev/null

This is a null destination that discards (drops) every data it receives, but reports that it has successfully received the data. This is useful sometimes for testing and performance measurements, for example, to find out if a real destination is the bottleneck, or another element in the upstream pipeline.

Steps

1. Create a new destination.

   1. Open the Axoflow Console.
   2. Select Topology.
   3. Select + > Destination.

2. Configure the destination.

   1. Select /dev/null.

   2. Enter a name for the destination.

      

   3. (Optional): Add custom labels to the destination.

   4. Select Create.

3. Create a flow to connect the new destination to an AxoRouter instance.

   1. Select Flows.

   2. Select Create New Flow.

   3. Enter a name for the flow, for example, my-test-flow.

      

   4. In the Router Selector field, enter an expression that matches the router(s) you want to apply the flow. To select a specific router, use a name selector, for example, name = my-axorouter-hostname.

   5. Select the Destination where you want to send your data. If you don’t have any destination configured, see Destinations.

      By default, you can select only external destinations. If you want to send data to another AxoRouter, enable the Show all destinations option, and select the connector of the AxoRouter where you want to send the data.

      

   6. (Optional) To process the data transferred in the flow, select Add New Processing Step. For details, see Processing steps. For example:

      1. Add a Reduce step to automatically remove redundant and empty fields from your data.
      2. To select which messages are processed by the flow, add a Select Messages step, and enter a filter into the Query field. For example, to select only the messages received from Fortinet FortiGate firewalls, use the meta.vendor = fortinet + meta.product = fortigate query.
      3. Save the processing steps.

      

   7. Select Create.

   8. The new flow appears in the Flows list.