Method, system and maintenance point for controlling continuity check of ethernet link

A system for controlling the continuity check of the Ethernet link, comprising a first maintenance point and a second maintain point respectively located at two ends of an Ethernet link, wherein:

• the first maintenance point comprises:
• a user indication receipt module adapted to output a corresponding trigger signal after receiving a deactivation indication for stopping the continuity check;
• and
• a first maintenance module adapted to start to send a continuity check message carrying exit check information according to the trigger signal;
• the second maintenance point comprises:
• a second maintenance module adapted to return an exit response message to the first maintenance point and stop the continuity check after receiving the continuity check message carrying the exit check information;
• and
• the first maintenance module stops sending the continuity check message carrying the exit check information when the first maintenance module receives the exit response message and exits the continuity check.

A maintenance point, comprising a timer and an alert module, wherein the maintenance point further comprises:

• a second maintenance module adapted to send an exit response message after receiving a continuity check message carrying exit check information;
• or adapted to
• activate a timer to monitor a life time carried in a continuity check message according to the continuity check message carrying the life time;
• trigger the alert module to perform a continuity check loss alert if the second maintenance module does not receive a next continuity check message when the timer expires;
• and trigger the alert module to end the alert when the second maintenance module receives the continuity check message carrying the life time again.