[c-nsp] ME3600x SNMP items for power supplies disappear when PSU is pulled

Waris Sagheer (waris) waris at cisco.com
Wed Oct 2 00:39:57 EDT 2013

ME3600X should come up with a single power supply. However dual supply is recommended.

Best Regards,


Waris Sagheer
Technical Marketing Manager
Service Provider Access Group
waris at cisco.com<mailto:waris at cisco.com>
Phone: +1 408 853 6682
Mobile: +1 408 835 1389

CCIE - 19901


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From: Richard Hartmann <richih.mailinglist at gmail.com<mailto:richih.mailinglist at gmail.com>>
Date: Saturday, September 14, 2013 12:45 AM
To: Phil Mayers <p.mayers at imperial.ac.uk<mailto:p.mayers at imperial.ac.uk>>
Cc: "cisco-nsp at puck.nether.net<mailto:cisco-nsp at puck.nether.net>" <cisco-nsp at puck.nether.net<mailto:cisco-nsp at puck.nether.net>>
Subject: Re: [c-nsp] ME3600x SNMP items for power supplies disappear when PSU is pulled

On Fri, Sep 13, 2013 at 7:19 PM, Phil Mayers <p.mayers at imperial.ac.uk<mailto:p.mayers at imperial.ac.uk>> wrote:

...so I guess you want that behaviour?


I think it's arguable which is the "right" approach here - I can see legit
reasons to do both, and I guess it's got to do with BU logic or maybe FRU
probing capabilities on the ME3600.

As the ME3600x is designed to run with two PSU and will not even start
when only one PSU is present, I do not think it's good design to
simply drop the entities.

Ironically, the 6500 which has a distinct fan tray and thus may run
with one PSU only is designed that way...

Maybe see if there's useful stuff under:

CISCO-ENTITY-FRU-CONTROL-MIB::cefcPowerRedundancyOperMode.18 = INTEGER:
CISCO-ENTITY-FRU-CONTROL-MIB::cefcPowerNonRedundantReason.18 = INTEGER:

...as for "number of supplies" - count all rows in the SupplyState table
with state==normal?

For some reason, I woke up at 0700 sharp (on the weekend, yay) so I
played with that for a few more few hours and... sadly no.

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