> # Quality of Service

> The quality of service (QoS) parameter specifies the differentiated services code point (DSCP) value to mark all IP packets (type of service—TOS field in the IP header).

> - The control DSCP value applies to all FCIP frames in the control TCP connection.
> - The data DSCP value applies to all FCIP frames in the data connection.

> If the FCIP link has only one TCP connection, that data DSCP value is applied to all packets in that connection.

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