From 1dab3d6d80c45eb43b8b13f0d349bca8f859941c Mon Sep 17 00:00:00 2001 From: Steven Smith Date: Mon, 19 Dec 2022 09:50:47 -0500 Subject: [PATCH] Adds release note for OSDOCS4376 --- release_notes/ocp-4-12-release-notes.adoc | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/release_notes/ocp-4-12-release-notes.adoc b/release_notes/ocp-4-12-release-notes.adoc index a1ec1ee45981..90fd1667c320 100644 --- a/release_notes/ocp-4-12-release-notes.adoc +++ b/release_notes/ocp-4-12-release-notes.adoc @@ -386,6 +386,15 @@ This update provides additional deployment specifications for MetalLB. When you For more information about deployment specifications for MetalLB, see xref:../networking/metallb/metallb-operator-install.adoc#nw-metallb-operator-deployment-specifications-for-metallb_metallb-operator-install[Deployment specifications for MetalLB]. +[id="overriding-default-node-ip-selection-logic"] +==== Node IP selection improvements + +Previously, the `nodeip-configuration` service on a cluster host selected the IP address from the interface that the default route used. If multiple routes were present, the service would select the route with the lowest metric value. As a result, network traffic could be distributed from the incorrect interface. + +With {product-title} 4.12, a new interface has been added to the `nodeip-configuration` service, which allows users to create a hint file. The hint file contains a variable, `NODEIP_HINT`, that overrides the default IP selection logic and selects a specific node IP address from the subnet `NODEIP_HINT` variable. Using the `NODEIP_HINT` variable allows users to specify which IP address is used, ensuring that network traffic is distributed from the correct interface. + +For more information, see xref:../support/troubleshooting/troubleshooting-network-issues.html#overriding-default-node-ip-selection-logic_troubleshooting-network-issues[Optional: Overriding the default node IP selection logic]. + [id="ocp-4-12-storage"] === Storage