2.8 Classes of Service

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

• Class 1 ” Dedicated connection service.

  - Connection-oriented

  - Acknowledged delivery

• Class 2 ” Multiplexed service.

  - Connectionless

  - Acknowledged delivery

• Class 3 ” Datagram service. This is the current class of service provided for by Hewlett-Packard. The device drivers determine if data is not received and needs to be retransmitted.

  - Connectionless

  - Unacknowledged delivery

Other classes of service may follow. However, they are currently not defined.