---
title: Azure Load Balancer
---

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# Azure Load Balancer

Arpio replicates Azure Load Balancers, enabling load-balanced applications to be restored in recovery environments.

### **Load Balancers**

<https://github.com/caricalabs/arpio-docs-poc/blob/1fd9078feb250a5b53dd9d517856df2de2a17f9e/docs/resources/azure/load-balancer.md#load-balancers>

Arpio replicates Load Balancers with their frontend IP configurations, backend address pools, health probes, and load balancing rules. Both public and internal load balancers are supported.

#### **Translated Attributes**

<https://github.com/caricalabs/arpio-docs-poc/blob/1fd9078feb250a5b53dd9d517856df2de2a17f9e/docs/resources/azure/load-balancer.md#translated-attributes>

The following attributes are translated during replication:

| Attribute | Translation Method |
| --- | --- |
| Frontend Public IP | Translated to corresponding recovery public IP |
| Frontend Subnet | Translated to corresponding recovery subnet |
| Backend Subnet | Translated to corresponding recovery subnet |
| Backend VNet | Translated to corresponding recovery VNet |
| Backend IP Addresses | Translated based on NIC or VNet renumbering |

#### **Automatic Dependency Selection**

<https://github.com/caricalabs/arpio-docs-poc/blob/1fd9078feb250a5b53dd9d517856df2de2a17f9e/docs/resources/azure/load-balancer.md#automatic-dependency-selection>

The following resources are automatically selected into recovery points when a Load Balancer is selected:

- Backend NICs and their associated VMs
- Frontend public IP addresses

#### **Limitations**

<https://github.com/caricalabs/arpio-docs-poc/blob/1fd9078feb250a5b53dd9d517856df2de2a17f9e/docs/resources/azure/load-balancer.md#limitations>

- Backend pool memberships on NICs are removed at standby since the load balancer may not exist
- Zone assignments are removed if the target region doesn't support availability zones

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