Reference documentation and code samples for the Compute Engine v1 API enum SSLHealthCheck.Types.PortSpecification.
Specifies how a port is selected for health checking. Can be one of the following values: USE_FIXED_PORT: Specifies a port number explicitly using the port field in the health check. Supported by backend services for passthrough load balancers and backend services for proxy load balancers. Not supported by target pools. The health check supports all backends supported by the backend service provided the backend can be health checked. For example, GCE_VM_IP network endpoint groups, GCE_VM_IP_PORT network endpoint groups, and instance group backends. USE_NAMED_PORT: Not supported. USE_SERVING_PORT: Provides an indirect method of specifying the health check port by referring to the backend service. Only supported by backend services for proxy load balancers. Not supported by target pools. Not supported by backend services for passthrough load balancers. Supports all backends that can be health checked; for example, GCE_VM_IP_PORT network endpoint groups and instance group backends. For GCE_VM_IP_PORT network endpoint group backends, the health check uses the port number specified for each endpoint in the network endpoint group. For instance group backends, the health check uses the port number determined by looking up the backend service's named port in the instance group's list of named ports.
A value indicating that the enum field is not set.
UseFixedPort
The port number in the health check's port is used for health checking. Applies to network endpoint group and instance group backends.
UseNamedPort
Not supported.
UseServingPort
For network endpoint group backends, the health check uses the port number specified on each endpoint in the network endpoint group. For instance group backends, the health check uses the port number specified for the backend service's named port defined in the instance group's named ports.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-08 UTC."],[[["\u003cp\u003eThe content provides reference documentation for the \u003ccode\u003eSSLHealthCheck.Types.PortSpecification\u003c/code\u003e enum within the Google Compute Engine v1 API, detailing the different ways to specify a port for health checks.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003ePortSpecification\u003c/code\u003e enum offers three options: \u003ccode\u003eUseFixedPort\u003c/code\u003e, which uses an explicitly defined port number; \u003ccode\u003eUseNamedPort\u003c/code\u003e, which is currently not supported; and \u003ccode\u003eUseServingPort\u003c/code\u003e, which refers to the backend service for the port.\u003c/p\u003e\n"],["\u003cp\u003eThe latest version of the API documented is 3.6.0, and the page details all the versions of this page ranging from 1.0.0 up to the latest version.\u003c/p\u003e\n"],["\u003cp\u003e\u003ccode\u003eUseFixedPort\u003c/code\u003e is supported by network endpoint group and instance group backends, while \u003ccode\u003eUseServingPort\u003c/code\u003e is used for health checks on endpoints or instance groups, and \u003ccode\u003eUndefinedPortSpecification\u003c/code\u003e simply means that the field has not been set.\u003c/p\u003e\n"],["\u003cp\u003eThe content is specifically detailing the different versions of the page, the latest version, and providing a break down of the fields and description associated with the API enum \u003ccode\u003eSSLHealthCheck.Types.PortSpecification\u003c/code\u003e.\u003c/p\u003e\n"]]],[],null,[]]
