Switch in Switch-Stack Will Not Join PowerStack

[remitprosupport]

Hello all...

I have a pair of C3750X's which are configured in a switch-stack (which is working as expected), but I'm having trouble getting them to join the same power stack.

I have the power stacking cables connected in the following fashion:

Switch1/Port1 ---> Switch2/Port2

Switch1/Port2 ---> Switch2/Port1

Neither of these has any PoE ports. They each have two 350W power supplies. I removed the original power stack from the configuration and created a new one. Here's the snip from my config:

stack-power stack powerstack
 mode power-shared strict
!
stack-power switch 2
 stack powerstack
stack-power switch 1
 stack powerstack
!

When I run "show stack-power" this is my ouput:

ProdSw1#sh stack-power
Power stack name: powerstack-1
    Stack mode: Power sharing strict
    Stack topology: Standalone
    Switch 1:
        Power budget: 670
        Low port priority value: 22
        High port priority value: 13
        Switch priority value: 1
        Port 1 status: Shut
        Port 2 status: Shut
        Neighbor on port 1: 0000.0000.0000
        Neighbor on port 2: 0000.0000.0000
Power stack name: powerstack
    Stack mode: Power sharing strict
    Stack topology: Standalone
    Switch 2:
        Power budget: 223
        Low port priority value: 22
        High port priority value: 13
        Switch priority value: 2
        Port 1 status: Shut
        Port 2 status: Shut
        Neighbor on port 1: 0000.0000.0000
        Neighbor on port 2: 0000.0000.0000

I've re-entered the commands numerous times, including specifically stating "no standalone" in the stack-power config mode, restarted, and still no change.

If anyone can point out what I might be doing wrong, I'd really appreciate it.

Thanks,

Dan

[Somasundaram Jayaraman]

Hi Dan,

The port 1 & port 2 status should be in no shut state for the formation of power stack. I see from your output that port 1 & port 2 is in shut state.

Port 1 status: Not shut

Port 2 status: Not shut

Power Supply Options for the Cisco Catalyst 3750-X Series Switches

Product ID	Description
C3KX-PWR-350WAC	350W AC power supply
C3KX-PWR-715WAC	715W AC power supply
C3KX-PWR-1100WAC	1100W AC power supply
C3KX-PWR-440WDC	440W DC power supply

Pls refer the below link for more details

http://www.cisco.com/en/US/prod/collateral/switches/ps5718/ps6406/white_paper_c11-578931.html

Hope this helps

Cheers

Somu

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[smogra]

As mentioned by Somu, your port status shows that they are in "shut" state. For them to work fine, they should be no shut.

ProdSw1#sh stack-power

Power stack name: powerstack-1

    Stack mode: Power sharing strict

    Stack topology: Standalone

    Switch 1:

        Power budget: 670

        Low port priority value: 22

        High port priority value: 13

        Switch priority value: 1

        Port 1 status: Shut << ---- shut

        Port 2 status: Shut << ------ shut

        Neighbor on port 1: 0000.0000.0000

        Neighbor on port 2: 0000.0000.0000

Execute the following command to get them working fine:

switch#stack-power switch <> port 1 enable

switch#stack-power switch <> port 2 enable

Please do that for all the switches in the stack where you replace the <> with the switch number.

Also check the power cable and its compatibility with the device.

Hope that helps.

Cheers

Sweta

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