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PrivateLoadBalancer


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Resource Overview​

A Load Balancer refers to the efficient distribution of incoming network traffic across a group of backend resources or servers. Azure Load Balancer operates at Layer 4 of the OSI (Open Systems Interconnection) model, serving as a single point of contact for clients. The Load Balancer distributes inbound traffic arriving at its front end to instances in the backend pool. This distribution is governed by configured load-balancing rules and health probes. Backend pool instances can be Azure Virtual Machines or instances from a Virtual Machine Scale Set. A Private Load Balancer is used when only a private IP address is required at the front end and is employed to distribute traffic within a virtual network. In hybrid scenarios, access to the Load Balancer's front end from an on-premises network is possible.

Associated Resources​

Parent Resource​

Resource Setting Values​

  • sku : The SKU to select the scale and features of the Azure Load Balancer - standard, Basic

  • private_lb_frontend_ip_config

    • subnet_name : The name of Subnet which should be associated with the IP configuration

  • virtual_network_name : The name of Virtual Machine which forward traffic

  • backend_pool : Name of the Load Balancer's backend pool

    • linked_virtual_machine_names : Names of the virtual machines to which the Load Balancer will route traffic

  • health_probe

    • protocol : The type of Backend endpoint protocol which health probe uses - Http, Https, Tcp
    • port : The port which health probe uses to check backend endpoint - 0 ~ 65535
    • request_path : The path to use for GET when using Http(s) probes
    • interval_in_seconds : Specifies the number of seconds between checking response of the backend pool instance by health probes - 5 ~ 2147483646

  • rule

    • protocol : The transport protocol for the external endpoint - Tcp, Udp, All
    • frontend_port : the port for the external endpoint - 0 ~ 65534 - 0 ~ 65534
    • backend_port : The port used for internal connections on the endpoint, 0 ~ 65535 - 0 ~ 65535
    • disable_outbound_snat : Enable SNAT for outbound connections - true, false
    • frontend_ip_configuration_name : The name of the frontend IP configuration to which the rule is associated
    • backend_pool_name : The name of the Backend Address Pool to which the Load Balancer will forward traffic

  • nat_rule

    • protocol : The transport protocol for the external endpoint - Tcp, Udp, All
    • frontend_port : The port for the external endpoint, Range between 0 and 65534 - 0 ~ 65534
    • backend_port : The port used for internal connections on the endpoint, Range between 0 and 65535 - 0 ~ 65535
    • frontend_ip_configuration_name : The name of the frontend IP configuration to which the nat rule is associated

  • tag : Tag to categorize resources - up to 512 characters, key:value

Reference Materials​