The IOS 12.2(31)-SGA11(ED) for Cat 4500 with Sup II+ can fix PoE issues?

[honslp2009]

Hi, I'm having trouble with a Cat SW 4500 with a supervisory II+ and a current IOS version 12.2(31)SGA. For unknown reason one of the blades stop sending power to most of their ports (1 to 25).

A year ago happens the same issue with the same blade.

The blade was physically reset without turn off the switch, after that the blade started to provide power on those ports. I notice that they are a new IOS version: 12.2(31)-SGA11(ED).

My concern is to known if the new version can fix PoE issues?

Thank you in advance,

Patricia.

[Giuseppe Larosa]

Hello Patricia,

>> For unknown reason one of the blades stop sending power to most of their ports (1 to 25).

A year ago happens the same issue with the same blade.

Honestly this looks like more an hardware issue or in the linecard itself or on the specific slot: power is taken from power supplies (if I remember correctly).

The only acceptable reason to stop sending power to some ports is a reduction of available power: in that case the switch choices to remove POE from some ports may be from a single linecard.

you can check this with

show environment

if there is available POE power this behaviour is not correct.

However,  issues with a specific linecard model / IOS version cannot be excluded

>> I notice that they are a new IOS version: 12.2(31)-SGA11(ED).

relatively new.

Hope to help

Giuseppe

[honslp2009]

Hi Giuseppe, I'm attaching you the capture for 'show environment'.

switch#sh environment

no alarm

Chassis Temperature                    = 31 degrees Celsius

Chassis Over Temperature Threshold     = 75 degrees Celsius

Chassis Critical Temperature Threshold = 95 degrees Celsius

Power                                             Fan      Inline

Supply  Model No          Type       Status       Sensor   Status

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

PS1     PWR-C45-4200ACV   AC 4200W   good         good     good

PS1-1                         220V   good

PS1-2                         220V   good

PS2     PWR-C45-4200ACV   AC 4200W   good         good     good

PS2-1                         220V   good

PS2-2                         220V   good

Power supplies needed by system    : 1

Power supplies currently available : 2

Chassis Type : WS-C4507R

Power consumed by backplane : 40 Watts

Switch Bandwidth Utilization : 0%

Supervisor Led Color : Green

Module  1 Status Led Color  : Green

Module  2 Status Led Color  : Green

Module  3 Status Led Color  : Green           PoE Led Color : Green

Module  4 Status Led Color  : Green           PoE Led Color : Green

Module  5 Status Led Color  : Green           PoE Led Color : Green

Fantray : Good

Power consumed by Fantray : 50 Watts

............................

This does mean issues of hardware?

Patricia