Run report to find failed POE switches?

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Hello -We have x460-48p gen1 switches system wide. When one fails POE we know about it b/c poe devices like cameras or WAPs are down which we monitor.  However there are some switches whose POE fails that we don't have any POE devices on so it's not as critical.  But we want to replace these for when we do need them in the future to provide POE.  As we notice them we replace them, which doesn't seem to be a most efficient approach.  Without logging into each stack and doing the traditional show inline power and deducing from that.  Is there any way I could run a report using Netsight or similar to query all the switch stacks and report back slots where POE failure is seen?

Some things to consider?

Here's an example of a stack of 5.

# sh stacking

*1     Active       Master   CA-

2     Active       Backup   CA-

3     Active       Standby  CA-

4     Active       Standby  CA-

5     Active       Standby  CA-

when you do show-inline power and you have a failed POE device, the full list won't populate.

In this example slot 3 above has failed POE so only slots (1 in this case is a non POE switch) with poe UP to the failed slot will show, not beyond.

 # sh inline-power

                Inline Power System Information
Configured                 : Enabled
Power Usage Threshold      : 70 percent (per slot)
Disconnect Precedence      : deny-port
                                       Budgeted       Measured
Slot  Inline-Power  Firmware Status    Power (Watts)  Power (Watts)
2     Enabled       Operational         760 W           0 W

See how it only shows inline output up to the switch that is working properly.  You know that slot 3 is the one that's failed.  But more than that could have failed, so to confirm I'll do a show inline-power info ports 4:1-10, 5:1-10 to make sure that they are searching for power.

Without having to confirm each site and the switch stacks at each site for how many are in the stack, and then querying show inline-power command and cross referencing for what's showing up is there a way I could somehow run a report for which slots in a stack have non-working POE?

Sometimes in the logs I'll see poePlusInit: PSE initialization failed other times bcmPseReceiveMessageString:                                                                                                                                                              timed out


Thanks,

Sarah



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Sarah Seidl

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Posted 1 year ago

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Al-Najjar, Khaled, Employee

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Hi
I faced the same issue
If you run diaganstoic extend, then the switch will do extend diagnostic and reboot. Then #sh Diag will show POE module failed.
Then you could know that switch PoE is failed.
Thanks
Khaled
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Sarah Seidl

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Thanks Khaled - we are familiar with that process and do use it. I am more looking for a non time consuming non reboot required method to collect data from current info? Like maybe leveraging netsight?  To run extended diag on all slots on all stacks across the enterprise would be quite time consuming :-)  I'm trying to find a way to gleen from information already on the slot and focus on that.  Kind of like high level get the information on where the issues are seen to be able to directly address.  Ever had luck with something like that?

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Ram, Employee

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We can configure/run a script in switch which match the log error message. But you need these information to be viewed on NetSight for all slot ports?
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Sarah Seidl

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I think so, b/c it could be on any slot in the stack in theory?
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Grosjean, Stephane, Employee

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I was also thinking of a script, preferably python (15.6+).

Something like:
Check which slots are PoE
Do a sh inline-power per slot
Check result

With exos 21.1+ (sorry, I know you can't here), I'd jsonrpc it to query any stack from a server/host.

You should be able to manage the same using cli scripting and ExtremeManagement.
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Brandon Clay, Escalation Support Engineer

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This is the way I would do it. It would be much easier with Python, but should still be doable via TCL on EXOS < 15.6.