我有ciscocatalyst 3750x 24口交换机系列交换机，交换机有C3KX-NM-10G模块。

问题 ：

我已经在 G2/TE1（上行链路）上的 SFP+ 收发器中连接了光纤。7 到 8 小时后，SFP+ 收发器停止工作（灯灭状态）。没有数据传输。如果我卸下 SFP+ 收发器并重新插入，则连接会恢复正常（灯闪烁）。数据传输再次开始。这每天都在发生。

在检查日志时，我发现了这个错误。

Tx 功率低报警和 Rx 功率低报警（这是 SFP 收发器问题吗）

    ASW-G-L09-001#show logging
Log Buffer (8192 bytes):
D_VIOLATION: Te1/1/1: Tx power low alarm; Operating value: -40.0 dBm, Threshold value: -11.3 dBm.
019031: May 18 12:27:34.016: %PLATFORM_ENV-1-FRU_PS_ACCESS: FRU Power Supply is not responding
019032: May 18 12:32:21.988: %SFF8472-5-THRESHOLD_VIOLATION: Te1/1/1: Tx power low alarm; Operating value: -40.0 dBm, Threshold value: -11.3 dBm.
019071: May 18 14:48:36.536: %PLATFORM_ENV-1-FRU_PS_ACCESS: FRU Power Supply is not responding
019072: May 18 14:52:25.536: %SFF8472-5-THRESHOLD_VIOLATION: Te1/1/1: Rx power low alarm; Operating value: -40.0 dBm, Threshold value: -13.9 dBm.
019073: May 18 14:52:25.536: %SFF8472-5-THRESHOLD_VIOLATION: Te1/1/1: Tx power low alarm; Operating value: -40.0 dBm, Threshold value: -11.3 dBm.
019074: May 18 14:52:57.740: %LINK-3-UPDOWN: Interface TenGigabitEthernet1/1/1, changed state to up
019075: May 18 14:52:59.770: %LINEPROTO-5-UPDOWN: Line protocol on Interface TenGigabitEthernet1/1/1, changed state to up