> # FC Interfaces ELP

> Field | Description
> --- | ---
> Neighbor Port | The port world wide name of the peer Interconnect_Port.
> Neighbor Switch | The node world wide name of the peer Node.
> BBCredit Rx | The maximum number of receive buffers available for holding Class 2, Class 3, Class F frames received from the peer Interconnect_Port. It is for buffer-to-buffer flow control in the incoming direction from the peer Interconnect_Port to local Interconnect_Port. The buffer-to-buffer flow control mechanism is indicated in the respective BbCreditModel.
> BBCredit Tx | The total number of buffers available for holding Class 2, Class 3, Class F frames to be transmitted to the peer Interconnect_Port. It is for buffer-to-buffer flow control in the direction from the local Interconnect_Port to peer Interconnect_Port. The buffer-to-buffer flow control mechanism is indicated in the corresponding BbCreditModel.
> CoS | The classes of services that the peer Interconnect_Port has requested the local Interconnect_Port to support and the local Interconnect_Port has granted the request.
> Class2 SeqDeliv | Whether the local Interconnect_Port has agreed to support Class 2 sequential delivery during the Exchange Link Parameters Switch Fabric Internal Link Service request. This is meaningful only if Class 2 service has been agreed.
> Class2 RxDataSize | The Class 2 Receive Data Field Size of the peer Interconnect_Port. Specifies the largest Data Field Size for an FT_1 frame that can be received by the Interconnect_Port. This is meaningful only if Class 2 service has been agreed.
> Class3 SeqDeliv | Whether the local Interconnect_Port has agreed to support Class 3 sequential delivery during the Exchange Link Parameters Switch Fabric Internal Link Service request. This is meaningful only if Class 3 service has been agreed.
> Class3 RxDataSize | The Class 3 Receive Data Field Size of the peer Interconnect_Port. Specifies the largest Data Field Size for an FT_1 frame that can be received by the Interconnect_Port. This is meaningful only if Class 3 service has been agreed.
> ClassF X_ID | When true indicates that the peer Interconnect_Port supplying this parameter requires that an interlock be used during X_ID assignment in Class F. This is meaningful only if Class F service has been agreed.
> ClassF RxDataSize | The Class F Receive Data Field Size of the peer Interconnect_Port. Class F service is always agreed between two Interconnect_Ports. Specifies the largest Data Field Size for an FT_1 frame that can be received by the Interconnect_Port.
> ClassF ConSeq | The number of sequence status blocks provided by the Interconnect_Port supplying the parameters for tracking the progress of a sequence as a sequence recipient. The maximum number of concurrent sequences that can be specified is 255. A value of N/A in this field is reserved.
> ClassF EECredit | The maximum number of Class F data frames which can be transmitted by an Interconnect_Port without receipt of accompanying ACK or Link_Response frames. The minimum value of end-to-end credit is one. The end-to-end credit field specified is associated with the number of buffers available for holding the Data_Field of a Class F frame and processing the contents of that Data_Field by the Interconnect_Port supplying the parameters.
> ClassF OpenSeq | The open sequences per exchange shall specify the maximum number of sequences that can be open at one time at the recipient between a pair of Interconnect_Ports for one exchange. This value is used for exchange and sequence tracking.

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