Explanations of Words and Concepts

Word/concept Definition
Relay Parent The relay parent is the grid which receives the relay connection from the relay child. A relay parent may have many relay children, and it may itself be the relay child of another grid.
Relay Child The relay child is the grid from which the relay connection is initiated. A relay child may only have one relay parent. A relay child grid may itself be the relay parent of another grid.
Answering Grid The answering grid has the server component of the proxy called through relay. This is the recipient of a relay call, and may be either a parent or a child grid.
Calling Grid The calling grid has the client component of the proxy called through relay. The caller may be either a parent or a child grid.
Relay Channel The connection between a calling grid and an answering grid.
Proxy Method The grid supports proxy methods, which offer the possibility to call methods in other grid applications, possibly in other grids.
Proxy ID A grid application that offers a proxy method to be called over a relay channel must register a proxy ID for that method so that a client application can map users to the correct answering grid.
External System One of the usage scenarios for relay communications is to be able to access on-premise applications which are not running in a grid. Such external systems can be defined in the External Systems Management UI. For more information, see section "External System Communication" in the Infor ION Grid Security Administration Guide.
External Systems Security Manager (ESSM) The External Systems Security Manager is responsible for the session transfer mechanism between relay grids. It maps users from one grid to the other and also handles credentials for defined external systems.
On-premise Grid An on-premise grid is a corporate grid which may be connected to a cloud grid using relay communication. In most cases, this would be a relay child grid.
Relay User The relay user is a concept to enable session transfer from one grid to another. The session is transferred from the calling grid to the answering grid. The relay user is defined in the External Systems Management UI of the answering grid.
Relay User ID The relay user ID is the name a user gets in the session obtained through a relay channel.
Local User ID The local user ID is the name a user gets in a grid when logged on using the normal session provider. This is also known as the grid principal name.
Relay Connection Type Each grid participating in a relay connection has control over what access the other grid – and its other relay connections, if any – should have. The possible values are peer only, peer chain, full access and no access.