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Windows Driver Kit DDI reference (ns-iscsimgt-_iscsi_path)

_ISCSI_Path structure

Description

The ISCSI_Path structure contains information about a connection of the iSCSI portal.

Members

`UniqueConnectionId`

This is a unique connection identifier that the initiator uses to identify a connection. The LoginToTarget and AddConnectionToSession methods both return this value in the UniqueConnectionId parameter. This value is not to be confused with the connection ID (CID).

`EstimatedLinkSpeed`

This specifies the connection speed in megabits per second (Mbps).

`PathWeight`

This specifies the weight assigned to this path. The value can be any 32-bit number, with a higher number that signifies a higher priority. If more than one path is available, this path weight value is compared against each other path weight and will be prioritized accordingly. For example, if a value of 1 is used for path1 and a value of 2 for path2, path2 has higher priority.

`PrimaryPath`

This specifies the state of the path: primary or secondary. If the value is 1, it means the path is the primary path, and if it is 0, it is a secondary path.

`ConnectionStatus`

This indicates the status of the connection.

Type	Meaning
CONNECTION_STATE_CONNECTED (1)	The path is connected and active.
CONNECTION_STATE_DISCONNECTED (2)	The path is disconnected.
CONNECTION_STATE_RECONNECTING(3)	The path is reconnecting.

`TCPOffLoadAvailable`

This indicates whether the connection supports TCP offload or not.

Remarks

The iSCSI headers and MOF are included in the platform SDK and WDK.

ISCSI_Path - NtDoc