HP StorageWorks 8/80 HP StorageWorks Fabric OS 6.1.x administrator guide (5697 - Page 111

NOTE: The FCS policy distribution is allowed to be distributed from a switch in the FCS list. However, if none of the FCS switches in the existing FCS list are reachable, receiving switches will accept distribution from any switch in the fabric. Local switch configuration parameters are needed to control whether a switch accepts or rejects distributions of FCS policy and whether the switch is allowed to initiate distribution of an FCS policy. A configuration parameter controls whether the distribution of the policy is accepted or rejected on the local switch. Setting the configuration parameter to accept indicates distribution of the policy will be accepted and distribution may be initiated using the distribute -p command. Setting the configuration parameter to reject indicates the policy distribution is rejected and the switch may not distribute the policy. The default value for the distribution configuration parameter is accept, which means the switch accepts all database distributions and is able to initiate a distribute operation for all databases. Table 27 Distribution policy states Fabric OS State 6.0/6.1.x and 5.3.0 configured to accept 6.0/6.1.x and 5.3.0 configured to reject Target switch accepts distribution and fabric state change occurs. Target switch explicitly rejects the distribution and the operation fails. The entire transaction is aborted and no fabric state change occurs. 5.2.0 switch (not configured as it does not support this) Pre-5.2.0 Target switch receives distribution but ignores FCS policy database. No distribution is initiated as pre-5.2.0 versions do not support this operation. Configuring a DCC policy Multiple DCC policies can be used to restrict which device ports can connect to which switch ports. The devices can be initiators, targets, or intermediate devices such as SCSI routers and loop hubs. By default, all device ports are allowed to connect to all switch ports; no DCC policies exist until they are created. For information regarding DCC policies and F_Port trunking, refer to the Access Gateway Administrator's Guide. Each device port can be bound to one or more switch ports; the same device ports and switch ports may be listed in multiple DCC policies. After a switch port is specified in a DCC policy, it permits connections only from designated device ports. Device ports that are not specified in any DCC policies are allowed to connect only to switch ports that are not specified in any DCC policies. When a DCC violation occurs, the related port is automatically disabled and must be re-enabled using the portEnable command. The procedure used to create a DCC policy is described after Table 28, which shows the possible DCC policy states. Table 28 DCC policy states Policy state No policy Characteristics Any device can connect to any switch port in the fabric. Fabric OS 6.1.x administrator guide 111