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Copy file name to clipboardExpand all lines: modules/network-observability-creating-metrics-network-events.adoc
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.Verification
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. In the web console, navigate to *Observe*->*Dashboards* and scroll down to see the *Network Policy* tab.
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. You should begin seeing metrics filter in based on the metric you created along with the network policy specifications.
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[IMPORTANT]
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====
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High cardinality can affect the memory usage of Prometheus. You can check if specific labels have high cardinality in the network flows format. See "Network Flows format reference".
= Important Flow Collector configuration considerations
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[role="_abstract"]
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Review essential `FlowCollector` configuration options before initial deployment to avoid pod disruptions caused by later reconfiguration. Key settings include Kafka integration, enriched flow data exports, SR-IOV traffic monitoring, and advanced tracking for DNS and packet drops.
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Once you create the `FlowCollector` instance, you can reconfigure it, but the pods are terminated and recreated again, which can be disruptive.
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Therefore, you can consider configuring the following options when creating the `FlowCollector` for the first time:
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* xref:../../observability/network_observability/configuring-operator.adoc#network-observability-flowcollector-kafka-config_network_observability[Configuring the Flow Collector resource with Kafka]
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* xref:../../observability/network_observability/configuring-operator.adoc#network-observability-enriched-flows_network_observability[Export enriched network flow data to Kafka or IPFIX]
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* xref:../../observability/network_observability/network-observability-secondary-networks.adoc#network-observability-SR-IOV-config_network-observability-secondary-networks[Configuring monitoring for SR-IOV interface traffic]
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* xref:../../observability/network_observability/observing-network-traffic.adoc#network-observability-working-with-conversations_nw-observe-network-traffic[Working with conversation tracking]
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* xref:../../observability/network_observability/observing-network-traffic.adoc#network-observability-dns-tracking_nw-observe-network-traffic[Working with DNS tracking]
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* xref:../../observability/network_observability/observing-network-traffic.adoc#network-observability-packet-drops_nw-observe-network-traffic[Working with packet drops]
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* xref:../../observability/network_observability/flowcollector-api.adoc#network-observability-flowcollector-api-specifications_network_observability[Flow Collector API Reference]
* xref:../../observability/network_observability/troubleshooting-network-observability.adoc#controller-manager-pod-runs-out-of-memory_network-observability-troubleshooting[Troubleshooting network observability controller manager pod runs out of memory]
//03/20/2026: Comment for JTBD work. This will likely need to be addressed and redone for JTBD. This file was created only to meet the ConceptLink rule by the deadline.
== Important Flow Collector configuration considerations
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Once you create the `FlowCollector` instance, you can reconfigure it, but the pods are terminated and recreated again, which can be disruptive. Therefore, you can consider configuring the following options when creating the `FlowCollector` for the first time:
* xref:../../observability/network_observability/configuring-operator.adoc#network-observability-flowcollector-kafka-config_network_observability[Configuring the Flow Collector resource with Kafka]
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* xref:../../observability/network_observability/configuring-operator.adoc#network-observability-enriched-flows_network_observability[Export enriched network flow data to Kafka or IPFIX]
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* xref:../../observability/network_observability/network-observability-secondary-networks.adoc#network-observability-SR-IOV-config_network-observability-secondary-networks[Configuring monitoring for SR-IOV interface traffic]
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* xref:../../observability/network_observability/observing-network-traffic.adoc#network-observability-working-with-conversations_nw-observe-network-traffic[Working with conversation tracking]
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* xref:../../observability/network_observability/observing-network-traffic.adoc#network-observability-dns-tracking_nw-observe-network-traffic[Working with DNS tracking]
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* xref:../../observability/network_observability/observing-network-traffic.adoc#network-observability-packet-drops_nw-observe-network-traffic[Working with packet drops]
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[role="_additional-resources"]
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.Additional resources
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* xref:../../observability/network_observability/flowcollector-api.adoc#network-observability-flowcollector-api-specifications_network_observability[Flow Collector API Reference]
* xref:../../observability/network_observability/troubleshooting-network-observability.adoc#controller-manager-pod-runs-out-of-memory_network-observability-troubleshooting[Troubleshooting network observability controller manager pod runs out of memory]
High cardinality can affect the memory usage of Prometheus. You can check whether specific labels have high cardinality in the xref:../../observability/network_observability/json-flows-format-reference.adoc#network-observability-flows-format_json_reference[Network Flows format reference].
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====
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[role="_additional-resources"]
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.Additional resources
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* xref:../../observability/network_observability/json-flows-format-reference.adoc#network-observability-flows-format_json_reference[Network Flows format reference]
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