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47 lines
2.1 KiB
Plaintext
47 lines
2.1 KiB
Plaintext
// Module included in the following assemblies:
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//
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// * network_observability/observing-network-traffic.adoc
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:_mod-docs-content-type: PROCEDURE
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[id="network-observability-packet-drops_{context}"]
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= Working with packet drops
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Packet loss occurs when one or more packets of network flow data fail to reach their destination. You can track these drops by editing the `FlowCollector` to the specifications in the following YAML example.
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[IMPORTANT]
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====
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CPU and memory usage increases when this feature is enabled.
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====
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.Procedure
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. In the web console, navigate to *Operators* -> *Installed Operators*.
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. Under the *Provided APIs* heading for the *NetObserv Operator*, select *Flow Collector*.
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. Select *cluster*, and then select the *YAML* tab.
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. Configure the `FlowCollector` custom resource for packet drops, for example:
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+
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[id="network-observability-flowcollector-configuring-pkt-drop_{context}"]
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.Example `FlowCollector` configuration
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[source, yaml]
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----
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apiVersion: flows.netobserv.io/v1alpha1
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kind: FlowCollector
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metadata:
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name: cluster
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spec:
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namespace: netobserv
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deploymentModel: DIRECT
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agent:
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type: EBPF
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ebpf:
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features:
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- PacketDrop <1>
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privileged: true <2>
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----
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<1> You can start reporting the packet drops of each network flow by listing the `PacketDrop` parameter in the `spec.agent.ebpf.features` specification list.
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<2> The `spec.agent.ebpf.privileged` specification value must be `true` for packet drop tracking.
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.Verification
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* When you refresh the *Network Traffic* page, the *Overview*, *Traffic Flow*, and *Topology* views display new information about packet drops:
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.. Select new choices in *Manage panels* to choose which graphical visualizations of packet drops to display in the *Overview*.
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.. Select new choices in *Manage columns* to choose which packet drop information to display in the *Traffic flows* table.
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... In the *Traffic Flows* view, you can also expand the side panel to view more information about packet drops. Host drops are prefixed with `SKB_DROP` and OVS drops are prefixed with `OVS_DROP`.
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.. In the *Topology* view, red lines are displayed where drops are present. |