anchor.diff:  * retries: number of retries in case of timeouts (default=1)
   * src_mac: source mac address to be used in Ethernet packets (default taken from port in use) 
   * timeout: timeout in seconds to wait for neighbor advertisements in response to our neighbor solicitation packets (default 2)
  -* verify_timeout: timeout in sseconds to wait for neighbor soliciation messages from a neighbor, after our NS was answered (Neighbor verification is not always performed, but depends on *our* state in the neighbors ND cache).
  +* verify_timeout: timeout in seconds to wait for neighbor soliciation messages from a neighbor, after our NS was answered (Neighbor verification is not always performed, but depends on *our* state in the neighbors ND cache).
   * vlan: vlan identifiers used for dot1q/dot1ad vlan headers (e.g. [200,2] uses outer vlan 200, inner vlan 2)
   * fmt: encapsulation format used for vlan tagging ('Q': dot1q, 'D': dot1ad). Double tagging can be formatted with "QQ" (double-dot1q) or "DQ" (dot1q in dot1ad), or 'DD' or 'QD' ....
   * verbose_level: increase logging of IPv6 service instances (e.g service_level = STLServiceIPv6ND.ERROR)
  
positive.code:     clear               clear IPv6 ND requests/entries
      resolve             perform IPv6 neighbor discovery
      status              show status of generated ND requests
  ----
  
  Perform 3 parallel ND operations, where source IPv6 addresses are incremented automatically:
  
negative.code: 
  [source,bash]
  ----
  
   trex(service)>plugins IPv6ND  status
   
   
   ND Status
  