stack power issues

Mukund M Deshpande · ‎02-27-2013

Hi ,

stack of two WS-C3750X-48T-S switches poping below error continuously and its observed after going for upgrade to

c3750e-universalk9-mz.122-55.SE6.bin

not able to get whts making switch to throw these logs-

Feb 25 09:36:46: %PLATFORM_STACKPOWER-4-UNDER_BUDGET: Switch 2 does not have sufficient power budget

Feb 25 09:37:46: %PLATFORM_STACKPOWER-4-UNDER_BUDGET: Switch 2 does not have sufficient power budget

Feb 25 09:38:46: %PLATFORM_STACKPOWER-4-UNDER_BUDGET: Switch 2 does not have sufficient power budget

Feb 25 09:39:46: %PLATFORM_STACKPOWER-4-UNDER_BUDGET: Switch 2 does not have sufficient power budget

Feb 25 09:40:46: %PLATFORM_STACKPOWER-4-UNDER_BUDGET: Switch 2 does not have sufficient power budget

Feb 25 09:41:47: %PLATFORM_STACKPOWER-4-UNDER_BUDGET: Switch 2 does not have sufficient power budget

Feb 25 09:42:47: %PLATFORM_STACKPOWER-4-UNDER_BUDGET: Switch 2 does not have sufficient power budget

Feb 25 09:43:47: %PLATFORM_STACKPOWER-4-UNDER_BUDGET: Switch 2 does not have sufficient power budget

#show ev nv power all

SW PID Serial# Status Sys Pwr PoE Pwr Watts

-- ------------------ ---------- --------------- ------- ------- -----

1A C3KX-PWR-350WAC LIT145204QP OK Good Good 350/0

1B C3KX-PWR-350WAC LIT145204TG OK Good Good 350/0

2A C3KX-PWR-350WAC LIT145204S8 OK Good Good 350/0

2B C3KX-PWR-350WAC LIT145204RY OK Good Good 350/0

9W-MUM-SIROYA-CORE-SW-1#show stack-power

Power stack name: Powerstack-1

Stack mode: Power sharing

Stack topology: Ring

Switch 1:

Power budget: 223

Low port priority value: 21

High port priority value: 12

Switch priority value: 3

Port 1 status: Connected

Port 2 status: Connected

Neighbor on port 1: 503d.e5c2.9680

Neighbor on port 2: 503d.e5c2.9680

Switch 2:

Power budget: 206

Low port priority value: 22

High port priority value: 13

Switch priority value: 4

Port 1 status: Connected

Port 2 status: Connected

Neighbor on port 1: 503d.e585.fc00

Neighbor on port 2: 503d.e585.fc00

Thanks for help

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Mukund M Deshpande · ‎03-01-2013

27 views no reply ?

any one using IOS - c3750e-universalk9-mz.122-55.SE6.bin ?

I suspect below bug but not sure about power budget 223W .

InayathUlla Sharieff · ‎03-01-2013

Hi Sagar,

Feb 25 09:36:46: %PLATFORM_STACKPOWER-4-UNDER_BUDGET: Switch 2 does not have sufficient power budget

Feb 25 09:37:46: %PLATFORM_STACKPOWER-4-UNDER_BUDGET: Switch 2 does not have sufficient power budge

Explanation: Switch # does not have sufficient power budget. There is not quite enough

input power in the power stack to ensure that every switch receives its 190W/223W/etc

MINPOWER "minimum" power budget. This means that StackPower cannot guarantee the

identified switch will not lose power or load-shed.

The problem could be fixed by either one of the following options:

Option 1: Put one or both of the switches into standalone with these

commands:

Switch(config)#stack-power switch 2

Switch(config-switch-stackpower)#standalone

Then wait 60 to 90 seconds and verify/check if the "UNDER_BUDGET" syslog

ceases occurring. If it does, then put the switch or switches back out of

standalone ("no standalone") and see if the syslog still stays away. If it

does, then the problem is solved (permanently).

This should be a non service affecting option as you have the power stack

setup in power-sharing mode but i would suggest you to do it in a downtime

window.

Option 2: Power cycle the switch throwing this error message. Please note

that we must do a power cycle, not a reload as we do with IOS upgrade.

There's a difference in this particular case.

HTH

Regards

Inayath

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