| 摘要 |
Disclosed are a pseudo-wire dual-homing protection control method and a communication device. When a line card of the communication device detects an alarm in a main pseudo-wire link currently in a working state, the line card switches to a backup pseudo-wire link and transmits an alarm notification to a main board of the communication device; then, the line card determines whether or not the alarm notification transmitted thereby is received normally by the main board; if not, then an exception in inter-board communication is indicated, the alarm notification is retransmitted to the main board, thus ensuring to the greatest possible extent that the main board can receive normally and be aware of alarms, switching links correspondingly on the basis of such, and ensuring a consistent pseudo-wire protection state for the main board and the line card. |
