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Bad cable or something else?

cre8toruk
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‎07-15-2020 05:55 AM

Hi All,

I have an edge stack of four SG350X-48's in a stack which are connected to my 10Gbe core via two copper XG ports (1:XG1 and 4:XG1) in a port channel (PO3 for info)

 

I'm investigating some potential network issues and I've been reviewing the logs on both the core and the edge stacks and discovered the following;

21474127292020-Jul-15 06:30:55Informational%LINK-I-Up:  te4/0/1   
21474127302020-Jul-15 06:23:32Warning%STP-W-PORTSTATUS: gi2/0/23: STP status Forwarding   
21474127312020-Jul-15 06:23:28Informational%LINK-I-Up:  gi2/0/23   
21474127322020-Jul-15 06:23:25Warning%LINK-W-Down:  gi2/0/23   
21474127332020-Jul-15 06:23:22Warning%STP-W-PORTSTATUS: gi2/0/23: STP status Forwarding   
21474127342020-Jul-15 06:23:17Informational%LINK-I-Up:  gi2/0/23   
21474127352020-Jul-15 06:23:16Warning%LINK-W-Down:  gi2/0/23   
21474127362020-Jul-15 06:21:51Warning%LINK-W-Down:  te4/0/1   
21474127372020-Jul-15 06:21:51Informational%LINK-I-Up:  te4/0/1   
21474127382020-Jul-15 06:17:40Warning%LINK-W-Down:  te4/0/1   
21474127392020-Jul-15 06:17:40Informational%LINK-I-Up:  te4/0/1   

 

I know it's a bit tricky given the information I've given.. but could this be anything other than a bad cable connection ?

 

thanks in advance,

 

Paul.

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cre8toruk
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‎07-15-2020 05:59 AM

a little more on this... I note on the core switch I have the following entries in the logs;
2147466697 2020-Jul-15 06:21:02 Warning %LINK-W-Down: te1/0/1
2147466699 2020-Jul-15 06:16:51 Warning %LINK-W-Down: te1/0/1
2147466701 2020-Jul-15 05:54:42 Warning %LINK-W-Down: te1/0/1
2147466702 2020-Jul-15 05:54:42 Warning %TRUNK-W-PORTREMOVED: Port te1/0/1 removed from Po3
2147466705 2020-Jul-15 05:08:46 Warning %LINK-W-Down: te2/0/1
2147466706 2020-Jul-15 05:08:46 Warning %TRUNK-W-PORTREMOVED: Port te2/0/1 removed from Po3
2147466707 2020-Jul-15 04:10:01 Warning %SNMP-W-SNMPAUTHFAIL: Access attempted by unauthorized NMS: 192.168.10.27
2147466708 2020-Jul-15 04:06:34 Warning %SNMP-W-SNMPAUTHFAIL: Access attempted by unauthorized NMS: 192.168.10.27
2147466710 2020-Jul-15 04:04:43 Warning %SNMP-W-SNMPAUTHFAIL: Access attempted by unauthorized NMS: 192.168.10.27
2147466713 2020-Jul-15 00:44:03 Warning %LINK-W-Down: te1/0/1
2147466714 2020-Jul-15 00:44:03 Warning %TRUNK-W-PORTREMOVED: Port te1/0/1 removed from Po3
2147466717 2020-Jul-15 00:09:39 Warning %SNMP-W-SNMPAUTHFAIL: Access attempted by unauthorized NMS: 192.168.10.27
2147466718 2020-Jul-15 00:06:34 Warning %SNMP-W-SNMPAUTHFAIL: Access attempted by unauthorized NMS: 192.168.10.27
2147466720 2020-Jul-15 00:04:46 Warning %SNMP-W-SNMPAUTHFAIL: Access attempted by unauthorized NMS: 192.168.10.27
2147466721 2020-Jul-14 22:26:54 Warning %LINK-W-Down: te1/0/1
2147466723 2020-Jul-14 20:42:03 Warning %LINK-W-Down: te1/0/1
2147466725 2020-Jul-14 20:09:53 Warning %SNMP-W-SNMPAUTHFAIL: Access attempted by unauthorized NMS: 192.168.10.27
2147466726 2020-Jul-14 20:08:29 Warning %LINK-W-Down: te1/0/1
2147466727 2020-Jul-14 20:08:29 Warning %TRUNK-W-PORTREMOVED: Port te1/0/1 removed from Po3
2147466728 2020-Jul-14 20:06:33 Warning %SNMP-W-SNMPAUTHFAIL: Access attempted by unauthorized NMS: 192.168.10.27
2147466730 2020-Jul-14 20:04:38 Warning %SNMP-W-SNMPAUTHFAIL: Access attempted by unauthorized NMS: 192.168.10.27
2147466733 2020-Jul-14 19:48:51 Warning %LINK-W-Down: te2/0/1
2147466734 2020-Jul-14 19:48:51 Warning %TRUNK-W-PORTREMOVED: Port te2/0/1 removed from Po3
2147466735 2020-Jul-14 16:06:44 Warning %SNMP-W-SNMPAUTHFAIL: Access attempted by unauthorized NMS: 192.168.10.27
2147466737 2020-Jul-14 16:04:45 Warning %SNMP-W-SNMPAUTHFAIL: Access attempted by unauthorized NMS: 192.168.10.27
2147466738 2020-Jul-14 12:05:13 Warning %SNMP-W-SNMPAUTHFAIL: Access attempted by unauthorized NMS: 192.168.10.27
2147466739 2020-Jul-14 08:06:39 Warning %SNMP-W-SNMPAUTHFAIL: Access attempted by unauthorized NMS: 192.168.10.27
2147466741 2020-Jul-14 08:04:47 Warning %SNMP-W-SNMPAUTHFAIL: Access attempted by unauthorized NMS: 192.168.10.27
2147466744 2020-Jul-14 07:45:38 Warning %LINK-W-Down: te1/0/1
2147466746 2020-Jul-14 07:37:50 Warning %LINK-W-Down: te1/0/1
2147466748 2020-Jul-14 07:29:37 Warning %LINK-W-Down: te1/0/1
2147466749 2020-Jul-14 07:29:37 Warning %TRUNK-W-PORTREMOVED: Port te1/0/1 removed from Po3
2147466752 2020-Jul-14 07:00:03 Warning %LINK-W-Down: te1/0/1
2147466753 2020-Jul-14 07:00:03 Warning %TRUNK-W-PORTREMOVED: Port te1/0/1 removed from Po3
2147466756 2020-Jul-14 06:12:38 Warning %LINK-W-Down: te1/0/1
2147466757 2020-Jul-14 06:12:38 Warning %TRUNK-W-PORTREMOVED: Port te1/0/1 removed from Po3

I note I don't see any thing being added back in but no one is screaming so I figure it's all back and working....
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cre8toruk
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In response to cre8toruk

‎07-16-2020 12:59 AM

Here's the setup of the LAG just in case there's some misconfiguration...

 

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