COMMUNICATION SYSTEM AND COMMUNICATION APPARATUS

摘要

PROBLEM TO BE SOLVED: To arbitrate communication time periods of a working system and a protection system in a packet communication network in order to decrease a packet loss at line switching in a packet relaying network.

SOLUTION: Communication time period measuring frames are simultaneously sent from an OAM adaptive device 200-A on a transmission side to both a working path 2010-W and a protection path 2010-P. In an OAM adaptive device 200-Z on a reception side, reception times of the frames having arrived from both the paths are checked so as to measure a time period difference between both the paths. The time period difference is fed back to a logic distance adjustment function of each PON section to determine required communication time periods of the PON sections respectively included in a working system and a protection system.

COPYRIGHT: (C)2010,JPO&INPIT