Fabric Services And State Change Notifications - EMC Connectrix EC-1200 Planning Manual

Fabric Services and State Change Notifications

In a multiswitch fabric, switch-provided services such as Name
Service, Registered State Change Notification (RSCN) requests, and
Zoning are provided on a fabric-wide basis. For example, if a
fabric-attached device queries a switch Name Server to locate all
devices that support a specified protocol, the reply includes all fabric
devices that support the protocol that are in the same Zone as the
requesting device, not just devices attached to the switch.
RSCNs are transmitted to all registered end-device N_Ports attached
to the fabric if either of the following occurs:
A fabric-wide event, such as an switch logging in to or out of the
fabric, or a reconfiguration because of an switch or ISL failure
A change in the zoning configuration

Fabric Services and State Change Notifications

Fibre Channel Switching Concepts
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