Jihoon Seo
41 lines
1.4 KiB
Markdown
41 lines
1.4 KiB
Markdown
---
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reviewers:
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- robscott
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title: Enabling Topology Aware Hints
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content_type: task
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min-kubernetes-server-version: 1.21
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---
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<!-- overview -->
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{{< feature-state for_k8s_version="v1.21" state="alpha" >}}
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_Topology Aware Hints_ enable topology aware routing with topology hints
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included in {{< glossary_tooltip text="EndpointSlices" term_id="endpoint-slice" >}}.
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This approach tries to keep traffic close to where it originated from;
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you might do this to reduce costs, or to improve network performance.
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## {{% heading "prerequisites" %}}
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{{< include "task-tutorial-prereqs.md" >}} {{< version-check >}}
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The following prerequisite is needed in order to enable topology aware hints:
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* Configure the {{< glossary_tooltip text="kube-proxy" term_id="kube-proxy" >}} to run in
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iptables mode or IPVS mode
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* Ensure that you have not disabled EndpointSlices
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## Enable Topology Aware Hints
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To enable service topology hints, enable the `TopologyAwareHints` [feature
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gate](/docs/reference/command-line-tools-reference/feature-gates/) for the
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kube-apiserver, kube-controller-manager, and kube-proxy:
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```
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--feature-gates="TopologyAwareHints=true"
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```
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## {{% heading "whatsnext" %}}
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* Read about [Topology Aware Hints](/docs/concepts/services-networking/topology-aware-hints) for Services
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* Read [Connecting Applications with Services](/docs/concepts/services-networking/connect-applications-service/)
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