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AWS eks documentation change

Service: eks · 2025-06-13 · Documentation low

File: eks/latest/userguide/hybrid-nodes-cni.md

Summary

Added BGP configuration details for Cilium, including operator restart requirements and ASN parameter clarifications.

Security assessment

Operational guidance for BGP setup without security-specific context. Changes focus on network configuration rather than security controls.

Diff

diff --git a/eks/latest/userguide/hybrid-nodes-cni.md b/eks/latest/userguide/hybrid-nodes-cni.md
index 1d916f146..7186df1e5 100644
--- a//eks/latest/userguide/hybrid-nodes-cni.md
+++ b//eks/latest/userguide/hybrid-nodes-cni.md
@@ -129 +129,9 @@ BGP |  Yes (Cilium Control Plane) |  Yes
-  6. To use BGP with Cilium to advertise your pod addresses with your on-premises network, you must have installed Cilium with `bgpControlPlane.enabled: true`. To configure BGP in Cilium, first create a file called `cilium-bgp-cluster.yaml` with a `CiliumBGPClusterConfig` with the `peerAddress` set to your on-premises router IP that you are peering with. Configure the `localASN` and `peerASN` based on your on-premises router configuration, which you might have to obtain from your network administrator.
+  6. To use BGP with Cilium to advertise your pod addresses with your on-premises network, you must have installed Cilium with `bgpControlPlane.enabled: true`. If you are enabling BGP for an existing Cilium deployment, you must restart the Cilium operator to apply the BGP configuration if BGP was not previously enabled. You can set `operator.rollOutPods` to `true` in your Helm values to restart the Cilium operator as part of the Helm install/upgrade process.
+
+To configure BGP in Cilium, first create a file called `cilium-bgp-cluster.yaml` with a `CiliumBGPClusterConfig` definition. You may need to obtain the following information from your network administrator.
+
+     * Configure `localASN` with the ASN for the nodes running Cilium.
+
+     * Configure `peerASN` with the ASN for your on-premises router.
+
+     * Configure the `peerAddress` with the on-premises router IP that each node running Cilium will peer with.
@@ -144 +152 @@ BGP |  Yes (Cilium Control Plane) |  Yes
-        localASN: ONPREM_ROUTER_ASN
+            localASN: NODES_ASN
@@ -147 +155 @@ BGP |  Yes (Cilium Control Plane) |  Yes
-          peerASN: PEER_ASN
+              peerASN: ONPREM_ROUTER_ASN