HP Cisco MDS 9020 Cisco MDS 9000 Family Command Reference - Cisco MDS SAN-OS R - Page 336

dpvm auto-learn Chapter 5 D Commands Send documentation comments to [email protected] dpvm auto-learn To enable the automatic learning feature (autolearn) for the active dynamic port VSAN membership (DPVM) database, use the dpvm auto-learn command. To disable this feature, use the no form of the command. dpvm auto-learn no dpvm auto-learn Syntax Description This command has no other arguments or keywords. Defaults Disabled. Command Modes Configuration mode. Command History Release 2.0(x) Modification This command was introduced. Usage Guidelines To use this command, DPVM must be enabled using the dpvm enable command. When autolearn is enabled, the system automatically creates the DPVM database by learning about devices currently logged or newly logged devices with a VSAN. This is a quick way to create the DPVM database, which can later be edited. Autolearn features include the following: • An autolearned entry is created by adding the device PWWN and VSAN to the active DPVM database. • The active DPVM database must be present when autolearning is enabled. • Autolearned entries can be deleted from the active DPVM database by the user until autolearning is disabled. Autolearned entries are not permanent in the active DPVM database until autolearning is disabled. • If a device logs out when autolearning is enabled, the device entry is deleted from the active DPVM database. • If a particular device logs into the switch multiple times through different ports, then only the VSAN corresponding to last login is associated with the device. • Autolearn entries do not override previously configured activate entries. Examples The following example shows how to enable autolearning for the DPVM database. switch# config terminal switch(config)# dpvm auto-learn The following example shows how to disable autolearning for the DPVM database. 5-38 Cisco MDS 9000 Family Command Reference OL-16217-01, Cisco MDS SAN-OS Release 3.x