Brocade VCS Fabric technology leverages proven FC Fabric protocols to build a TRILL fabric. The main functions of the fabric formation protocols are as follows:
- Assign the Brocade VCS Fabric-wide unique RBridge IDs (Domain ID Assignment).
- Create the network topology database using link state routing protocol (Fabric Shortest Path First, or FSPF). FSPF calculates the shortest path routes to a destination RBridge.
- Distribute fabric multicast traffic.