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DOT1x and LINK-3-UPDOWN & LINEPROTO-5-UPDOWN

Can this cause dot1x authentication failure. When I put dot1x on my switch i get the same ports that authenticate initially but within 25 hours they fail authentication. When I remove dot1x I get continuous "LINK-3-UPDOWN & LINEPROTO-5-UPDOWN" on the same ports. The devices are Cisco compatible.

Can flapping cause authentication failure ? If it does why ?

 

013519: *Mar 11 00:42:27.974 cst: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet4/0/38, changed state to up
013520: *Mar 11 00:48:25.429 cst: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet4/0/38, changed state to down
013521: *Mar 11 00:48:26.436 cst: %LINK-3-UPDOWN: Interface GigabitEthernet4/0/38, changed state to down
013522: *Mar 11 00:48:28.910 cst: %LINK-3-UPDOWN: Interface GigabitEthernet4/0/38, changed state to up
013523: *Mar 11 00:48:29.917 cst: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet4/0/38, changed state to up
013524: *Mar 11 00:48:59.067 cst: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet4/0/38, changed state to down
013525: *Mar 11 00:49:00.065 cst: %LINK-3-UPDOWN: Interface GigabitEthernet4/0/38, changed state to down
013526: *Mar 11 00:49:02.666 cst: %LINK-3-UPDOWN: Interface GigabitEthernet4/0/38, changed state to up
013527: *Mar 11 00:49:03.673 cst: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet4/0/38, changed state to up
013528: *Mar 11 00:56:20.358 cst: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet3/0/25, changed state to down
013529: *Mar 11 00:56:22.380 cst: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet3/0/25, changed state to up
013530: *Mar 11 00:58:59.255 cst: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet3/0/25, changed state to down
013531: *Mar 11 00:59:01.269 cst: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet3/0/25, changed state to up
013532: *Mar 11 00:59:15.538 cst: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet3/0/25, changed state to down
013533: *Mar 11 00:59:16.536 cst: %LINK-3-UPDOWN: Interface GigabitEthernet3/0/25, changed state to down
013534: *Mar 11 00:59:18.616 cst: %LINK-3-UPDOWN: Interface GigabitEthernet3/0/25, changed state to up
013535: *Mar 11 00:59:22.030 cst: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet3/0/25, changed state to up
013536: *Mar 11 01:00:17.571 cst: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet3/0/25, changed state to down
013537: *Mar 11 01:00:18.570 cst: %LINK-3-UPDOWN: Interface GigabitEthernet3/0/25, changed state to down
013538: *Mar 11 01:00:21.288 cst: %LINK-3-UPDOWN: Interface GigabitEthernet3/0/25, changed state to up
013539: *Mar 11 01:00:22.294 cst: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet3/0/25, changed state to up
 

Dot1x is removed.

 

 

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