ipv6 interface reachable-time (for the
      management port)
   
   
      Configure the time a neighbor is considered reachable after receiving a reachability
         confirmation. 

Note   
            This command does not apply to all hardware platforms.
          
 
    
      
      Command Parameters
         
         
            
               - <0-3600000>
 
               - Configures the time, in
                  milliseconds, a neighbor is considered reachable after receiving a reachability
                  confirmation.
 
            
         
      
      Default
         
         The default is 30000.
      
      Command Mode
         
         mgmtEthernet Interface Configuration