NAME

  C_RFC3315_22_9_ElapTimeOpt_maxtime.seq - Maximum Elapsed Time in elapsed-time field

TARGET

  Client

SYNOPSIS

   C_RFC3315_22_9_ElapTimeOpt_maxtime.seq [-tooloption...] 
  -pkt   C_RFC3315_22_9_ElapTimeOpt_maxtime.def 
  -tooloption : v6eval tool option


  See Also  DHCPv6.def  

INITIALIZATION

• Network Topology

          NUT(Client)
          |           
          |                        
Link0   --+--------+------------------------ 3ffe:501:ffff:100::/64
                   |
                   |          
                   TN(Server) 
   

• Verification Points



   The format of Elapsed Time option is :  

         0                   1                   2                   3
       0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
      +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
      |      OPTION_ELAPSED_TIME      |           option-len          |
      +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
      |          elapsed-time         |
      +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 

      option-code   OPTION_ELAPSED_TIME (8). 

      option-len    2. 

      elapsed-time  The amount of time since the client began its
                    current DHCP transaction.  This time is expressed in
                    hundredths of a second (10^-2 seconds). 

   A client MUST include an Elapsed Time option in messages to indicate
   how long the client has been trying to complete a DHCP message
   exchange.


                                  The elapsed time value is an
   unsigned, 16 bit integer.  The client uses the value 0xffff to
   represent any elapsed time values greater than the largest time value
   that can be represented in the Elapsed Time option.
   

• Configurations




Device Name	Device Type	Interface	Assigned Prefix	Link Local Addr	MAC Addr
Client	NUT	Link0	3ffe:501:ffff:100::/64	NUT's Linklocal address	NUT's MAC address
Server	TN	Link0	3ffe:501:ffff:100::/64	fe80::200:ff:fe00:a1a1	00:00:00:00:a1:a1

TEST PROCEDURE

       NUT      TN
        |       | 
        |       |Initialize NUT(as a DHCPv6 client)
        | ----> |Solicit 
        | <---- |Advertise
        | ----> |Request 
        | <---- |Reply w/IA_NA option(T1=660,T2=1056)
        |       |
        | <---- |Echo Request
        | ----> |Echo Reply	
        |       |
        |       | Wait T1 time expire
        |       |
        | ----> |Renew (7*)
        |       |

JUDGEMENT

  
  (7*)PASS: NUT transmits Renew message with Elapsed time option with elapsed-time field set to 0xffff.

TERMINATION

  N/A

REFERENCE

  Also see RFC3315


  22.9. Elapsed Time Option  

SEE ALSO

  perldoc  V6evalTool