W Commands

This chapter describes the Cisco NX-OS Fibre Channel, virtual Fibre Channel, and Fibre Channel over Ethernet (FCoE) commands that begin with W.

wwn secondary-mac

To allocate a secondary MAC address to a SAN node, use the wwn secondary-mac command.

wwn secondary-mac wwn-id range address-range

Syntax Description

wwn-id

Secondary MAC address with the format hh:hh:hh:hh:hh:hh.

range address-range

Specifies the range for the specified WWN. The only valid value is 64.


Command Modes

Global configuration mode

Command History

Release
Modification

4.0(0)N1(1a)

This command was introduced.


Usage Guidelines

This command cannot be undone.

Changes to the worldwide names are only performed as required. They should not be changed on a daily basis. These changes should be made by an administrator or individual who is completely familiar with switch operations.

Examples

This example shows how to allocate a secondary range of MAC addresses: 

switch(config)# wwn secondary-mac 00:99:55:77:55:55 range 64

 
   
 
    
   
 Related Commands
 
   
 
    
 
      
      
      
 
        
        

          Command 
        
 		 
        
        

          Description 
        
 		 
      
 
      
 
       
 show wwn 
 		 
       
 Displays the status of the WWN configuration. 
 		 
      
 
      
    
 
   
 
   
 
   
 
 
    
     
    
    
    
   
 wwn vsan 
 
    
   
 To configure a WWN for a suspended Virtual SAN (VSAN) that has interop mode 4 enabled, use the wwn vsan command. To discard the configuration, use the no form of this command. 
 
    
   
wwn vsan vsan-id vsan-wwn wwn 
 
    
   
no wwn vsan vsan-id vsan-wwn wwn 
 
    
   
 Syntax Description
 
   
 
    
 
      
      
      
 
       
 vsan-id 
 		 
       
 VSAN ID. The range is from 1 to 4093. 
 		 
      
 
      
 
       
 vsan-wwn wwn 
 		 
       
 Specifies the WWN for the VSAN. The format is hh:hh:hh:hh:hh:hh:hh:hh. 
 		 
      
 
      
    
 
   
 
   
 
   
 
 
    
   
 Command Default 
 
    
   
 None 
 
    
   
 Command Modes 
 
    
   
 Global configuration mode 
 
    
   
 Command History
 
   
 
    
 
      
      
      
 
        
        

          Release 
        
 		 
        
        

          Modification 
        
 		 
      
 
      
 
       
 4.0(0)N1(1a) 
 		 
       
 This command was introduced. 
 		 
      
 
      
    
 
   
 
   
 
   
 
 
    
   
 Usage Guidelines 
 
    
   
 This command can succeed only if the following conditions are satisfied: 
 
    
   
 •The VSAN must be suspended. 
 
    
   
 •The VSAN must have interop mode 4 enabled before you can specify the switch WWN for it. 
 
    
   
 •The switch WWN must be unique throughout the entire fabric. 
 
    
   
 •The configured switch WWN must have McData OUI [08:00:88]. 
 
    
   
 Examples 
 
    
   
 This example shows how to assign a WWN to a VSAN: 
 
    
   
 
    
switch(config)# wwn vsan 100 vsan-wwn 20:64:08:00:88:0d:5f:81

 
   
 
    
   
 
    
switch(config)# vsan database

 
   
 
    
   
 
    
switch(config-vsan-db)# vsan 100 suspend

 
   
 
    
   
 
    
switch(config-vsan-db)# exit

 
   
 
    
   
 
    
switch(config)# wwn vsan 100 vsan-wwn 20:64:08:00:88:0d:5f:81

 
   
 
    
   
 
    
 
   
 
    
   
 Related Commands
 
   
 
    
 
      
      
      
 
        
        

          Command 
        
 		 
        
        

          Description 
        
 		 
      
 
      
 
       
 vsan database 
 		 
       
 Creates multiple fabrics sharing the same physical infrastructure, assigns ports to a VSAN, turns on or off interop mode, load balances either per originator exchange or source-destination ID, and creates VSAN membership.