s5500几分钟之内交换机端口不断地up和down

2021-01-04 20:29:04

Notificationadmin logged in from 172.17.36.1.

2021-01-04 20:25:58

WarningPktType=HTTP/HTTPS, SrcMAC=00e0-4f26-12d0, Dropped from interface=GigabitEthernet1/0/14 at Stage=0, StageCnt=131, TotalCnt=132, MaxRateInterface=GigabitEthernet1/0/14.

2021-01-04 20:23:37

NotificationLine protocol state on the interface GigabitEthernet1/0/9 changed to up.

2021-01-04 20:23:37

NotificationLine protocol state on the interface Vlan-interface131 changed to up.

2021-01-04 20:23:37

InformationalNearest bridge agent neighbor created on port GigabitEthernet1/0/9 (IfIndex 9), neighbor's chassis ID is 047c-16eb-1134, port ID is 047c-16eb-1134.

2021-01-04 20:23:37

ErrorPhysical state on the interface GigabitEthernet1/0/9 changed to up.

2021-01-04 20:23:37

ErrorPhysical state on the interface Vlan-interface131 changed to up.

2021-01-04 20:23:34

NotificationLine protocol state on the interface GigabitEthernet1/0/9 changed to down.

2021-01-04 20:23:34

NotificationLine protocol state on the interface Vlan-interface131 changed to down.

2021-01-04 20:23:34

ErrorPhysical state on the interface GigabitEthernet1/0/9 changed to down.

2021-01-04 20:23:34

ErrorPhysical state on the interface Vlan-interface131 changed to down.

2021-01-04 20:23:25

NotificationLine protocol state on the interface GigabitEthernet1/0/9 changed to up.

2021-01-04 20:23:25

NotificationLine protocol state on the interface Vlan-interface131 changed to up.

2021-01-04 20:23:25

ErrorPhysical state on the interface GigabitEthernet1/0/9 changed to up.

2021-01-04 20:23:25

ErrorPhysical state on the interface Vlan-interface131 changed to up.

2021-01-04 20:23:22

Notification

Line protocol state on the interface GigabitEthernet1/0/9 changed to down.

交换机日志如上，vlan131是g1/0/9划分的vlan，请问在几分钟之内端口不断地up和down，过了几分钟之后又恢复正常这个是什么原因？端口配置了stp边缘端口。