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Copy file name to clipboardExpand all lines: articles/batch/simplified-compute-node-communication.md
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title: Use simplified compute node communication
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description: Learn about the simplified compute node communication mode in the Azure Batch service and how to enable it.
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ms.topic: how-to
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ms.date: 01/10/2024
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ms.date: 03/27/2025
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ms.custom: references_regions
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---
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This article describes the *simplified* communication mode and the associated network configuration requirements.
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> [!TIP]
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> Information in this document pertaining to networking resources and rules such as NSGs doesn't apply to Batch pools with [no public IP addresses](simplified-node-communication-pool-no-public-ip.md) that use the node management private endpoint without internet outbound access.
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> Information in this document pertaining to networking resources and rules such as NSGs doesn't apply to Batch pools with no public IP addresses that use the node management private endpoint without internet outbound access.
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> [!WARNING]
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> The *classic* compute node communication mode will be retired on **31 March 2026** and replaced with the *simplified* communication mode described in this document. For more information, see the communication mode [migration guide](batch-pools-to-simplified-compute-node-communication-model-migration-guide.md).
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> The *classic* compute node communication mode will be retired on **31 March 2026** and replaced with the *simplified* communication mode described in this document.
The following are known limitations of the simplified communication mode:
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- Limited migration support for previously created pools [without public IP addresses](batch-pool-no-public-ip-address.md). These pools can only be migrated if created in a [virtual network](batch-virtual-network.md), otherwise they won't use simplified compute node communication, even if specified on the pool. For more information, see the [migration guide](batch-pools-without-public-ip-addresses-classic-retirement-migration-guide.md).
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- Cloud Service Configuration pools are currently not supported for simplified compute node communication and are [deprecated](https://azure.microsoft.com/updates/azure-batch-cloudserviceconfiguration-pools-will-be-retired-on-29-february-2024/). Specifying a communication mode for these types of pools aren't honored and always results in *classic* communication mode. We recommend using Virtual Machine Configuration for your Batch pools. For more information, see [Migrate Batch pool configuration from Cloud Services to Virtual Machine](batch-pool-cloud-service-to-virtual-machine-configuration.md).
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- Limited migration support for previously created pools [without public IP addresses](batch-pool-no-public-ip-address.md). These pools can only be migrated if created in a [virtual network](batch-virtual-network.md), otherwise they won't use simplified compute node communication, even if specified on the pool.
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- Cloud Service Configuration pools are not supported for simplified compute node communication and are [deprecated](https://azure.microsoft.com/updates/azure-batch-cloudserviceconfiguration-pools-will-be-retired-on-29-february-2024/). Specifying a communication mode for these types of pools aren't honored and always results in *classic* communication mode. We recommend using Virtual Machine Configuration for your Batch pools.
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## Next steps
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- Learn how to [use private endpoints with Batch accounts](private-connectivity.md).
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