| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To avoid an increase in transmission delay and the occurrence of packet loss resulting from a MAC address solution in a newly connected router (nAR). <P>SOLUTION: A mobile node (MN) transmits (4) an echo request to the effect that the transmission source address is set to be an nCoA right after transmitting a BU for (3) an HA. The nAR having received (4) the echo request intends to transmit an echo reply to the nCoA being the transmission source address of the echo request. However, at this time, since an entry regarding the nCoA does not exist in a neighbor cache of the nAR, the nAR transmits (5) NS to the MN, and generates a neighbor cache entry of the nCoA by receiving (6) an NA. After this, at the time when (8) a BA has arrived at the nAR, since the entry of the nCoA has already existed, (8) the BA and data packets (9) to (11) arriving at the nAR following (8) the BA are transferred to the MN without being buffered in the nAR, corresponding to the entry of the nCoA generated at the time of transmission of (7) the echo reply. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
