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SG500X-48 Stack Link Down Warning Messages

ksenter
Level 1
Level 1

‎01-25-2013 08:51 AM

I just deployed two stacked SG500X switches.  I noticed these messages in the log (see below).  Despite these messages everything appears to be functioning.  Any idea what they mean?

Here's a snippet:

21474818342013-Jan-25 11:41:17Warning%Stack-W-LINK DOWN: link 0 on unit-2, aggregated (369)      
21474818352013-Jan-25 11:41:17Informational%Stack-I-LINK UP: link 0 on unit-2, aggregated (369)      
21474818362013-Jan-25 11:37:25Warning%STCK SYSL-W-UNITMSG: UNIT ID 2,Msg:%Stack-W-LINK DOWN: link 0 on unit-2, aggregated (1)       
21474818372013-Jan-25 11:37:25Warning%Stack-W-LINK DOWN: link 0 on unit-2      
21474818382013-Jan-25 11:37:25Informational%Stack-I-LINK UP: link 0 on unit-2      
21474818392013-Jan-25 11:37:25Informational%STCK SYSL-I-UNITMSG: UNIT ID 2,Msg:%Stack-I-LINK UP: link 0 on unit-2, aggregated (1)       
21474818402013-Jan-25 11:37:25Warning%STCK SYSL-W-UNITMSG: UNIT ID 2,Msg:%Stack-W-LINK DOWN: link 0 on unit-2, aggregated (485)       
21474818412013-Jan-25 11:37:25Informational%STCK SYSL-I-UNITMSG: UNIT ID 2,Msg:%Stack-I-LINK UP: link 0 on unit-2, aggregated (485)       
21474818422013-Jan-25 11:37:24Warning%Stack-W-LINK DOWN: link 0 on unit-2, aggregated (483)      
21474818432013-Jan-25 11:37:24Informational%Stack-I-LINK UP: link 0 on unit-2, aggregated (483)      
21474818442013-Jan-25 11:32:25Warning%STCK SYSL-W-UNITMSG: UNIT ID 2,Msg:%Stack-W-LINK DOWN: link 0 on unit-2       
21474818452013-Jan-25 11:32:25Warning%Stack-W-LINK DOWN: link 0 on unit-2      
21474818462013-Jan-25 11:32:25Informational%STCK SYSL-I-UNITMSG: UNIT ID 2,Msg:%Stack-I-LINK UP: link 0 on unit-2      
21474818472013-Jan-25 11:32:25Informational%Stack-I-LINK UP: link 0 on unit-2      
21474818482013-Jan-25 11:32:24Warning%STCK SYSL-W-UNITMSG: UNIT ID 2,Msg:%Stack-W-LINK DOWN: link 0 on unit-2, aggregated (492)       
21474818492013-Jan-25 11:32:24Informational%STCK SYSL-I-UNITMSG: UNIT ID 2,Msg:%Stack-I-LINK UP: link 0 on unit-2, aggregated (492)       
21474818502013-Jan-25 11:32:24Warning%Stack-W-LINK DOWN: link 0 on unit-2, aggregated (492)      
21474818512013-Jan-25 11:32:24Informational%Stack-I-LINK UP: link 0 on unit-2, aggregated (492)      
21474818522013-Jan-25 11:27:24Warning%STCK SYSL-W-UNITMSG: UNIT ID 2,Msg:%Stack-W-LINK DOWN: link 0 on unit-2, aggregated (1)       
21474818532013-Jan-25 11:27:24Warning%Stack-W-LINK DOWN: link 0 on unit-2      
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1 Reply 1

ksenter
Level 1
Level 1

‎01-28-2013 10:07 AM

So, it seems that when the second stacking cable was added it didn't change from chain mode to ring mode.  I'm not sure if that was a side effect of the problem or the cause.  Maybe there's something wrong with that stack cable or maybe not.  I ended up moving it to a different set of switches and used a different cable on this set and both sets of switches are working fine now without the warning messages.

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