| 某公司SSL VPN日志正常, 某公司上联的交换机日志有问题:
 
 Apr 22 16:54:06 BJT: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet3/36, changed state to down
 Apr 22 16:54:06 BJT: %LINK-3-UPDOWN: Interface GigabitEthernet3/36, changed state to down
 Apr 22 16:54:06 BJT: %LINEPROTO-SP-5-UPDOWN: Line protocol on Interface GigabitEthernet3/36, changed state to down
 Apr 22 16:54:06 BJT: %LINK-SP-3-UPDOWN: Interface GigabitEthernet3/36, changed state to down
 Apr 22 16:54:07 BJT: %LINK-3-UPDOWN: Interface GigabitEthernet3/36, changed state to up
 Apr 22 16:54:07 BJT: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet3/36, changed state to up
 Apr 22 16:54:07 BJT: %LINK-SP-3-UPDOWN: Interface GigabitEthernet3/36, changed state to up
 Apr 22 16:54:07 BJT: %LINEPROTO-SP-5-UPDOWN: Line protocol on Interface GigabitEthernet3/36, changed state to up
 Apr 22 16:54:10 BJT: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet3/36, changed state to down
 Apr 22 16:54:10 BJT: %LINK-3-UPDOWN: Interface GigabitEthernet3/36, changed state to down
 Apr 22 16:54:10 BJT: %LINEPROTO-SP-5-UPDOWN: Line protocol on Interface GigabitEthernet3/36, changed state to down
 Apr 22 16:54:10 BJT: %LINK-SP-3-UPDOWN: Interface GigabitEthernet3/36, changed state to down
 Apr 22 16:54:12 BJT: %LINK-3-UPDOWN: Interface GigabitEthernet3/36, changed state to up
 Apr 22 16:54:12 BJT: %LINK-SP-3-UPDOWN: Interface GigabitEthernet3/36, changed state to up
 Apr 22 16:54:12 BJT: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet3/36, changed state to up
 Apr 22 16:54:12 BJT: %LINEPROTO-SP-5-UPDOWN: Line protocol on Interface GigabitEthernet3/36, changed state to up
 Apr 22 16:55:07 BJT: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet3/36, changed state to down
 Apr 22 16:55:07 BJT: %LINEPROTO-SP-5-UPDOWN: Line protocol on Interface GigabitEthernet3/36, changed state to down
 Apr 22 16:55:08 BJT: %LINK-3-UPDOWN: Interface GigabitEthernet3/36, changed state to down
 Apr 22 16:55:08 BJT: %LINK-SP-3-UPDOWN: Interface GigabitEthernet3/36, changed state to down
 Apr 22 16:55:10 BJT: %LINK-3-UPDOWN: Interface GigabitEthernet3/36, changed state to up
 Apr 22 16:55:10 BJT: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet3/36, changed state to up
 Apr 22 16:55:10 BJT: %LINK-SP-3-UPDOWN: Interface GigabitEthernet3/36, changed state to up
 Apr 22 16:55:10 BJT: %LINEPROTO-SP-5-UPDOWN: Line protocol on Interface GigabitEthernet3/36, changed state to up
 Apr 22 16:55:59 BJT: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet3/36, changed state to down
 Apr 22 16:55:59 BJT: %LINK-3-UPDOWN: Interface GigabitEthernet3/36, changed state to down
 Apr 22 16:55:59 BJT: %LINEPROTO-SP-5-UPDOWN: Line protocol on Interface GigabitEthernet3/36, changed state to down
 Apr 22 16:55:59 BJT: %LINK-SP-3-UPDOWN: Interface GigabitEthernet3/36, changed state to down
 Apr 22 16:56:01 BJT: %LINK-3-UPDOWN: Interface GigabitEthernet3/36, changed state to up
 Apr 22 16:56:01 BJT: %LINK-SP-3-UPDOWN: Interface GigabitEthernet3/36, changed state to up
 Apr 22 16:56:01 BJT: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet3/36, changed state to up
 Apr 22 16:56:01 BJT: %LINEPROTO-SP-5-UPDOWN: Line protocol on Interface GigabitEthernet3/36, changed state to up
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