S5024PV2-EI IFNET 错误 求大神看看什么情况导致

一段时间内 出现大量的错误包 持续半小时

设备型号：S5024PV2-EI

报错如下：

 %May 30 11:31:08:932 2000 H3C IFNET/3/LINK_UPDOWN: GigabitEthernet1/0/22 link status is UP. %May 30 11:31:09:800 2000 H3C IFNET/3/LINK_UPDOWN: GigabitEthernet1/0/22 link status is DOWN. %May 30 11:31:11:448 2000 H3C IFNET/3/LINK_UPDOWN: GigabitEthernet1/0/22 link status is UP. %May 30 14:34:38:073 2000 H3C IFNET/3/LINK_UPDOWN: GigabitEthernet1/0/24 link status is DOWN. %May 30 14:35:15:551 2000 H3C IFNET/3/LINK_UPDOWN: GigabitEthernet1/0/21 link status is DOWN. %May 31 05:27:22:761 2000 H3C IFNET/3/LINK_UPDOWN: GigabitEthernet1/0/21 link status is UP. %May 31 05:27:24:012 2000 H3C IFNET/3/LINK_UPDOWN: GigabitEthernet1/0/21 link status is DOWN. %May 31 05:27:25:645 2000 H3C IFNET/3/LINK_UPDOWN: GigabitEthernet1/0/21 link status is UP. %May 31 05:27:26:055 2000 H3C IFNET/3/LINK_UPDOWN: GigabitEthernet1/0/21 link status is DOWN. %May 31 05:27:27:690 2000 H3C IFNET/3/LINK_UPDOWN: GigabitEthernet1/0/21 link status is UP. %May 31 13:04:58:964 2000 H3C IFNET/3/LINK_UPDOWN: GigabitEthernet1/0/22 link status is DOWN. %May 31 13:05:01:301 2000 H3C IFNET/3/LINK_UPDOWN: GigabitEthernet1/0/22 link status is UP. %May 31 14:03:13:168 2000 H3C IFNET/3/LINK_UPDOWN: GigabitEthernet1/0/22 link status is DOWN. %May 31 14:03:15:507 2000 H3C IFNET/3/LINK_UPDOWN: GigabitEthernet1/0/22 link status is UP. %May 31 14:03:16:314 2000 H3C IFNET/3/LINK_UPDOWN: GigabitEthernet1/0/22 link status is DOWN. %May 31 14:03:18:596 2000 H3C IFNET/3/LINK_UPDOWN: GigabitEthernet1/0/22 link status is UP. %May 31 14:39:52:227 2000 H3C IFNET/3/LINK_UPDOWN: GigabitEthernet1/0/21 link status is DOWN. %May 31 17:39:00:941 2000 H3C IFNET/3/LINK_UPDOWN: GigabitEthernet1/0/3 link status is UP. %May 31 17:39:01:132 2000 H3C IFNET/3/LINK_UPDOWN: GigabitEthernet1/0/3 link status is DOWN.