Dell Brocade G620 Brocade 8.0.1 Fabric OS Administratiors Guide - Page 222
Device Connection Control policies, Virtual Fabrics considerations, DCC policy restrictions
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Configuring Security Policies TABLE 41 Distribution policy states (continued) Fabric OS v6.2.0 and later configured to reject State Target switch explicitly rejects the distribution and the operation fails. The entire transaction is aborted and no fabric state change occurs. Device Connection Control policies Multiple Device Connection Control (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. Table 42 shows the possible DCC policy states. TABLE 42 DCC policy states Policy state No policy Policy with no entries Policy with entries Characteristics Any device can connect to any switch port in the fabric. Any device can connect to any switch port in the fabric. An empty policy is the same as no policy. If a device WWN or Fabric port WWN is specified in a DCC policy, that device is only allowed access to the switch if connected by a switch port listed in the same policy. If a switch port is specified in a DCC policy, it only permits connections from devices that are listed in the policy. Devices with WWNs that are not specified in a DCC policy are allowed to connect to the switch at any switch ports that are not specified in a DCC policy. Switch ports and device WWNs may exist in multiple DCC policies. Proxy devices are always granted full access and can connect to any switch port in the fabric. Virtual Fabrics considerations The DCC policies that have entries for the ports that are being moved from one logical switch to another will be considered stale and will not be enforced. You can choose to keep stale policies in the current logical switch or delete the stale policies after the port movements. Use the secPolicyDelete command to delete stale DCC policies. DCC policy restrictions The following restrictions apply when using DCC policies: ∙ Some older private-loop host bus adaptors (HBAs) do not respond to port login from the switch and are not enforced by the DCC policy. This does not create a security problem because these HBAs cannot contact any device outside of their immediate loop. Brocade Fabric OS Administration Guide, 8.0.1 222 53-1004111-02
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