Type of session affinity to use. The default is NONE. Only NONE and HEADER_FIELD are supported when the backend service is referenced by a URL map that is bound to target gRPC proxy that has validateForProxyless field set to true. For more details, see: Session Affinity.
2-tuple hash on packet's source and destination IP addresses. Connections from the same source IP address to the same destination IP address will be served by the same backend VM while that VM remains healthy.
ClientIpNoDestination
1-tuple hash only on packet's source IP address. Connections from the same source IP address will be served by the same backend VM while that VM remains healthy. This option can only be used for Internal TCP/UDP Load Balancing.
ClientIpPortProto
5-tuple hash on packet's source and destination IP addresses, IP protocol, and source and destination ports. Connections for the same IP protocol from the same source IP address and port to the same destination IP address and port will be served by the same backend VM while that VM remains healthy. This option cannot be used for HTTP(S) load balancing.
ClientIpProto
3-tuple hash on packet's source and destination IP addresses, and IP protocol. Connections for the same IP protocol from the same source IP address to the same destination IP address will be served by the same backend VM while that VM remains healthy. This option cannot be used for HTTP(S) load balancing.
GeneratedCookie
Hash based on a cookie generated by the L7 loadbalancer. Only valid for HTTP(S) load balancing.
HeaderField
The hash is based on a user specified header field.
HttpCookie
The hash is based on a user provided cookie.
None
No session affinity. Connections from the same client IP may go to any instance in the pool.
UndefinedSessionAffinity
A value indicating that the enum field is not set.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Hard to understand","hardToUnderstand","thumb-down"],["Incorrect information or sample code","incorrectInformationOrSampleCode","thumb-down"],["Missing the information/samples I need","missingTheInformationSamplesINeed","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-03-21 UTC."],[[["This document outlines the available versions of `SessionAffinity` within the `Google.Cloud.Compute.V1` namespace, with the latest version being 3.6.0 and going as far back as 1.0.0."],["`SessionAffinity` is an enum type that defines the type of session affinity to be used, with the default being `NONE`."],["The available `SessionAffinity` types include `ClientIp`, `ClientIpNoDestination`, `ClientIpPortProto`, `ClientIpProto`, `GeneratedCookie`, `HeaderField`, `HttpCookie`, `None`, and `UndefinedSessionAffinity`, each with a specific behavior on how to direct connections to back end virtual machines."],["Certain `SessionAffinity` types are restricted based on the load balancing type, such as `ClientIpNoDestination` being exclusively for Internal TCP/UDP Load Balancing, or `GeneratedCookie` being exclusive to HTTP(S) load balancing."],["`NONE` and `HEADER_FIELD` are the only supported fields when the backend service is referenced by a URL map that is bound to a target gRPC proxy that has validateForProxyless field set to true."]]],[]]
