NAME

HA_8_1_14 - retransmission wait time

TARGET

Router

TOPOLOGY

                       MN1X
                        |
        --------+-------+--------------- Link1X
                |
                R1
                |
--------+-------+----------------------- Link1
        |
       NUT
        |
--------+---------------+-------+------- Link0
                        |       |
                       MN0     CN0

Link0	global	3ffe:501:ffff:100::/64	home link
Link1	global	3ffe:501:ffff:101::/64	foreign link
Link1X	global	3ffe:501:ffff:1101::/64	foreign link
R1 (Link1)	global	3ffe:501:ffff:101::a1a1
	ether	00:00:00:00:a1:a1
MN0	global	3ffe:501:ffff:100:200:ff:fe00:a2a2	home address
CN0	global	3ffe:501:ffff:100:<TnDef.Link0_addr>
	link-local	fe80::<TnDef.Link0_addr>
	ether	<TnDef.Link0_addr>
MN1X	global	3ffe:501:ffff:1101:200:ff:fe00:a2a2	care-of address

INITIALIZATION

• Reboot NUT (reboot.rmt)
• Enable HA function (mip6EnableHA.rmt)
• Configure routing table of NUT (route.rmt)
• Configure RA parameter (rtadvd.rmt)

Check Link1 routing table

  NUT
(Link0)   MN1X
   |       |
   | <---- | Echo Request
   | ----> | Echo Reply
   |       |

1. MN1X sends Echo Request
2. MN1X receives Echo Reply

• Initialize IPsec configuration (ipsecEnable.rmt, ipsecClearAll.rmt)
• Set IPsec configuration (ipsecSetSAD.rmt, ipsecSetSPD.rmt)
  • ESP transport mode (BU/BA)
  • ESP transport mode (MPS/MPA)

Check home registration

  NUT
(Link0)   MN1X
   |       |
   | <---- | BU (A=1, lifetime=0x0010) (SPI=0x101)
   | ----> | BA (SPI=0x102)
   |       |

1. MN1X sends BU
2. MN1X receives BA

Check BCE

  NUT
(Link0)   MN1X
   |       |
   | <---- | Echo Request w/ HaO (SPI=0x105)
   | ----> | Echo Reply w/ RH (SPI=0x106)
   |       |

1. MN1X sends Echo Request w/ HaO
2. MN1X receives Echo Reply w/ RH

RS/RA exchange

          NUT
  CN0   (Link0)
   |       |
   | ----> | RS
   | <---- | RA
   |       |

1. CN0 sends RS
2. CN0 receives RA

TEST PROCEDURE

Check MPD

  NUT
(Link0)   MN1X
   |       |
   | ----> | MPA (SPI=0x106)
   | ----> | MPA (SPI=0x106)
   | ----> | MPA (SPI=0x106)
   | ----> | MPA (SPI=0x106)
   |       |

1. MN1X receives MPA
    packet format is:
        ICMP_MPA_message_format_from_HA_to_MN_ESP.gif

JUDGEMENT

PASS: MN1X receives MPA

REFERENCE

   The home agent MUST wait PREFIX_ADV_TIMEOUT (see Section 12) before
   the first retransmission, and double the retransmission wait time for
   every succeeding retransmission, up until a maximum of
   PREFIX_ADV_RETRIES attempts (see Section 12).  If the mobile node's
   bindings expire before the matching Binding Update has been received,
   then the home agent MUST NOT attempt any more retransmissions, even
   if not all PREFIX_ADV_RETRIES have been retransmitted.  If the mobile
   node sends another Binding Update without returning home in the
   meantime, the home agent SHOULD again begin transmitting the
   unsolicited Advertisement.