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3.2.1.1.3 Virtual Connection ADM Elements

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Virtual Connection Cookie

Implementations of this protocol MUST maintain a Virtual Connection Cookie that is a RTS cookie (2.2.3.1). The value of the Virtual Connection Cookie is the same as the Virtual Connection RTS cookie for this Virtual Connection in the Virtual Connection Cookie Table.

Virtual Connection State

Implementations of this protocol MUST maintain a protocol variable for the Virtual Connection State which is used to track the current state in the role-specific state machine. Each role initializes the Virtual Connection State to a role-specific state value.

Default IN Channel

Implementations of this protocol MUST maintain a reference to the Default IN Channel. During channel recycling, a Virtual Connection has two IN channels active.

A default IN channel is a protocol variable that indicates which of the two channels is the default channel. Outside channel recycling, there is only one IN channel at a given point in time, and this channel is always considered the default channel. The default channel MUST be used for sending all RPC PDUs. Sending of RTS PDUs is specified in section 3.2.2.4.2.

Non-Default IN Channel

Implementations of this protocol MUST maintain a reference to the Non-Default IN Channel. During channel recycling, a Virtual Connection has two IN channels active.

Default IN Channel Cookie

Implementations of this protocol MUST maintain an RTS cookie (2.2.3.1) for the Default IN Channel.

Non-Default IN Channel Cookie

Implementations of this protocol MUST maintain an RTS cookie (2.2.3.1) for the Non-Default IN Channel.

Default OUT Channel

Implementations of this protocol MUST maintain a reference to the Default OUT Channel.

Non-Default OUT Channel

Implementations of this protocol MUST maintain a reference to the Non-Default OUT Channel.

Default OUT Channel Cookie

Implementations of this protocol MUST maintain an RTS cookie (2.2.3.1) for the Default OUT Channel.

Non-Default OUT Channel Cookie

Implementations of this protocol MUST maintain an RTS cookie (2.2.3.1) for the Non-Default OUT Channel.

Protocol Version

Implementations of this protocol MUST maintain a variable to contain the ProtocolVersion which is of unsigned integer type. A value of 1 indicates RPC/HTTP2 version of the protocol.

AssociationGroupId

Implementations of this protocol MUST maintain an RTS cookie (2.2.3.1) called AssociationGroupId that can be used by higher-layer protocols to link multiple virtual connections.