SNIA Developer Conference September 15-17, 2025 | Santa Clara, CA
class of service
1. [Network] A mechanism for managing traffic in a network by specifying message or packet priority or delivery acknowledgement.
Network mechanisms include identification and grouping of data packets based on a priority label (in the packet header) or via mechanisms such as "per hop behavior", defined by the IETF's Differentiated Services.
2. [Fibre Channel] The characteristics and guarantees of the transport layer of a Fibre Channel network.
Fibre Channel classes of service include acknowledged frame delivery with end to end flow control (i.e., Class 2), and packetized frame datagrams (i.e., Class 3). Different classes of service may simultaneously exist in a Fibre Channel Fabric. The form and reliability of delivery in Class 3 circuits may vary with the topology.