The Fibre Channel Inter-Fabric Routing (FC-IFR) standard defines the protocols@ functions@ and mappings for the routing of Fibre Channel frames between physically or logically separated Fabrics. This standard is divided into the following clauses: Clause 1 specifies the scope of this standard. Clause 2 specifies the normative references that apply to this standard. Clause 3 specifies the definitions@ abbreviations@ and conventions used in this standard. Clause 4 specifies the structure and concepts of an Inter-Fabric Router. Clause 5 specifies the operational requirements for an Inter-Fabric Router. Clause 6 specifies the Fabric addressing for an Inter-Fabric Router. Clause 7 specifies the Internal Link Services for an Inter-Fabric Router. Clause 8 specifies the zoning protocol for an Inter-Fabric Router. Clause 9 specifies the operation of redundant Inter-Fabric Routers. Clause 10 specifies the timers and constants for an Inter-Fabric Router.