3.14 Classes of Service

only for RuBoard - do not distribute or recompile

Fibre Channel classes of service are managed by the FC-2 level. Currently the following five classes of service are defined by the standard:

Class 1 ”Dedicated connection service.
- Connection-oriented
- Acknowledged delivery
Class 2 ”Multiplexed service.
- Connectionless
- Acknowledged delivery
Class 3 ”Datagram service. The device drivers determine if data is not received and needs to be retransmitted.
- Connectionless
- Unacknowledged delivery
Class 4 ”Fractional service. It uses a fraction of the bandwidth of the link between two ports for communication.
- Connection-oriented
Class 6 ”Unidirectional Dedicated Connection service. It provides dedicated unidirectional connections.
- Connection-oriented

Classes 4 and 6 are defined, but are not widely implemented. Other classes of service may follow. However, they are currently not defined.

only for RuBoard - do not distribute or recompile