NAME

  C_RFC3315_22_9_ElapTimeOpt_time.seq - Elapsed Time in elapsed-time field

TARGET

  Client

SYNOPSIS

   C_RFC3315_22_9_ElapTimeOpt_time.seq [-tooloption...] 
  -pkt   C_RFC3315_22_9_ElapTimeOpt_time.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.

  
   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 is measured from the time at which the
   client sent the first message in the message exchange, and the
   elapsed-time field is set to 0 in the first message in the message
   exchange.

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 (1*)
        |       |
        | ----> |Solicit (2*)
        |       |
        | ----> |Solicit (3*)
        |       |
        | ----> |Solicit (4*)
        |       |
        | ----> |Solicit (5*)
        |       |
        | ----> |Solicit (6*)
        |       |

JUDGEMENT


  
  (1*)PASS: NUT transmits Solicit message with Elapsed time option with elapsed-time field set to 0.
  (2*) - (6*)PASS: NUT transmits Solicit message with Elapsed time option with elapsed-time field set to the time elapsed since the first Solicit message was received (+0.5 or - 0.5 second).

TERMINATION

N/A

REFERENCE

  Also see RFC3315


  22.9. Elapsed Time Option