接口不断up/down，能定位一下是什么问题的，换了光纤还是这样。
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问题描述：
%Mar S5500 IFNET/5/LINK_UPDOWN: Line protocol state on the interface Vlan-interface103 changed to up.
%Mar S5500 IFNET/5/LINK_UPDOWN: Line protocol state on the interface Vlan-interface102 changed to up.
%Mar S5500 IFNET/5/LINK_UPDOWN: Line protocol state on the interface Vlan-interface101 changed to up.
%Mar S5500 IFNET/3/PHY_UPDOWN: Physical state on the interface Vlan-interface103 changed to up.
%Mar S5500 IFNET/3/PHY_UPDOWN: Physical state on the interface Vlan-interface102 changed to up.
%Mar S5500 IFNET/3/PHY_UPDOWN: Physical state on the interface Vlan-interface101 changed to up.
%Mar S5500 IFNET/5/LINK_UPDOWN: Line protocol state on the interface Ten-GigabitEthernet1/0/28 changed to up.
%Mar S5500 IFNET/3/PHY_UPDOWN: Physical state on the interface Ten-GigabitEthernet1/0/28 changed to up.
%Mar S5500 IFNET/5/LINK_UPDOWN: Line protocol state on the interface Vlan-interface103 changed to down.
%Mar S5500 IFNET/5/LINK_UPDOWN: Line protocol state on the interface Vlan-interface102 changed to down.
%Mar S5500 IFNET/5/LINK_UPDOWN: Line protocol state on the interface Vlan-interface101 changed to down.
%Mar S5500 IFNET/3/PHY_UPDOWN: Physical state on the interface Vlan-interface103 changed to down.
%Mar S5500 IFNET/3/PHY_UPDOWN: Physical state on the interface Vlan-interface102 changed to down.
%Mar S5500 IFNET/3/PHY_UPDOWN: Physical state on the interface Vlan-interface101 changed to down.
%Mar S5500 IFNET/5/LINK_UPDOWN: Line protocol state on the interface Ten-GigabitEthernet1/0/28 changed to down.
%Mar S5500 IFNET/3/PHY_UPDOWN: Physical state on the interface Ten-GigabitEthernet1/0/28 changed to down.
%Mar S5500 STP/6/STP_DETECTED_TC: Instance 0's port Ten-GigabitEthernet1/0/28 detected a topology change.
%Mar S5500 LLDP/6/LLDP_CREATE_NEIGHBOR: Nearest bridge agent neighbor created on port Ten-GigabitEthernet1/0/28 (IfIndex 28), neighbor's chassis ID is 743a-20b8-a298, port ID is Ten-GigabitEthernet2/0/23.
- 2025-03-27提问
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