HP Cisco Nexus 5000 Cisco Nexus 5000 Series Switch CLI Software Configuration - Page 640

Name Server Proxy Managing FLOGI, Name Server, FDMI, and RSCN Databases Name Server Proxy The name server functionality maintains a database containing the attributes for all hosts and storage devices in each VSAN. Name servers allow a database entry to be modified by a device that originally registered the information. The proxy feature is useful when you need to modify (update or delete) the contents of a database entry that was previously registered by a different device. About Registering Name Server Proxies All name server registration requests come from the same port whose parameter is registered or changed. If it does not, then the request is rejected. This authorization enables WWNs to register specific parameters for another node. Registering Name Server Proxies To register the name server proxy, perform this task: Procedure Step 1 Step 2 Command or Action Purpose switch# configuration terminal Enters configuration mode. switch(config)#fcns proxy-port wwn-id vsan Configures a proxy port for the specified vsan-id VSAN. About Rejecting Duplicate pWWNs You can prevent malicious or accidental log in using another device's pWWN by enabling the reject-duplicate-pwwn option. If you disable this option, these pWWNs are allowed to log in to the fabric and replace the first device in the name server database. Rejecting Duplicate pWWNs To reject duplicate pWWNs, perform this task: Procedure Step 1 Step 2 Step 3 Command or Action switch# configuration terminal switch(config)# fcns reject-duplicate-pwwn vsan vsan-id switch(config)# no fcns reject-duplicate-pwwn vsan vsan-id Purpose Enters configuration mode. Logs out devices when they log into the fabric if the pWWNs already exist. Overwrites the first device's entry in the name server database with the new device having the same pWWN (default). Cisco Nexus 5000 Series Switch CLI Software Configuration Guide 594 OL-16597-01