HP StorageWorks 4/64 Brocade Fabric OS Administrator's Guide v6.3.0 (53-100133 - Page 93
Understanding Fibre Channel Services, In this Fibre Channel services overview
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Chapter Understanding Fibre Channel Services 3 In this chapter •Fibre Channel services overview 51 •The Management Server 52 •Platform services 52 •Management server database 53 •Topology discovery 57 Fibre Channel services overview Fibre Channel services define service functions such as the Name Server, Management Server, Security Key Distribution Server, and Time Server. Every Brocade switch has reserved three byte addresses referred to as well-known addresses. These services provided by Brocade switches reside at these addresses and provide a service to either nodes or management applications in the fabric. FIGURE 5 Well-Known Addresses Fabric login - The fabric login server assigns a fabric address. This allows a fabric node to communicate with services on the switch or other nodes in the fabric. Fabric addresses assigned to nodes are three bytes long and are a combination of the domain ID and the port area number of the port where the node is attached. Directory server - The directory server or name server is where fabric and public nodes register themselves and query to discover other devices in the fabric. Fabric controller - The fabric controller provides state change notifications to registered nodes when a change in the fabric topology occurs. Time server - The time server sends to the member switches in the fabric the time on either the principal switch or the Primary FCS switch. Management server - The management server provides a single point for managing the fabric. Alias server - The alias server keeps a group of nodes registered as one name to handle multicast groups. Fabric OS Administrator's Guide 51 53-1001336-01
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