How to shutdown only a switch in stack

[Eder Silva]

Hello Everyone,

I have a doubt. In my environement I have two Switch 3750-X in stack.

My question is:

How to shutdown remotely only a switch in stack?

Best Regards.

Eder.

[Leo Laohoo]

Hi Ranganath,

If possible, can you pass a "thank you" to the 3750X BU and/or developer for putting this command in?

You have no idea the dirty thoughts swirling in my mind about this feature.  I can't wait to get my hands on a stack of 3750E/3750X.

I wonder if this command works for 2960S. 

[ranraju]

Hi Leolaohoo,

I understand, this feature is surely something that we can make use of - for our purpose to shutdown a switch remotely . We need to get a much detailed understand of this command's functionality and its consequences and hopefully should not have any other adverse effects. So, we should actually ask the BU to give us more information and get this documented somewhere.. if its found useful..

Appreciate your feedback.

Regards,

Ranganath

[Somasundaram Jayaraman]

Yes Reza, it will basically isolate the switch from stack. I tried in a standalone switch which is having a FRU with power supply on/off command. It reloads the switch. So there is a mechanism which turns on the FRU even though we turned it off from the CLI. So we need to remove the power cable from the switch in order to power off the switch completely which is not possible if we are at remote end.

So the only option we have is to disable and enable the stack ports in which we have control from the master switch.

Still i would suggest to hold a physical access to the device when troubleshooting stack issues.

We will definetly take this up wih BU for future enhancement.

Hope this helps

Cheers

Somu

[Somasundaram Jayaraman]

Hi,

It is documented here.

http://www.ciscosysteme.com/en/US/docs/switches/lan/catalyst3750e_3560e/software/release/12.2_55_se/command/reference/cli1.html#wp8821509

The power supply command applies to a  Catalyst 3560-E switch, a Catalyst 3750-E standalone switch, or a switch  stack with only Catalyst 3750-E switches.

In a switch stack with only Catalyst 3750-E switches, you must specify the stack member before entering the off or on keywords.

The no power supply user EXEC command is not supported. To return to the default setting, use the power supply switch-number on command.

This example shows how to set the power supply of a stack member in a switch stack to off:

Switch> power supply 2 off

This example shows how to set the power supply of a switch to on:

Switch> power supply on

This example shows how to set the power supply of a stack member in a switch stack to off:

Switch> power supply 2 off

This example shows how to set the power supply of a switch to on:

Switch> power supply on

You can verify your settings by entering the show env power privileged EXEC command.

Cheers

Somu

[Reza Sharifi]

Hi,

I don't have a stack of them to test it on just one.  So the question is, is this command only useful in a stack environment, because as I mentioned above on a single 3750e the power turns on by itself after a couple of minutes.

Reza

[manju.cisco]

Hi Ranga,

+5.

Thanks for enlighting about the command  "power supply off" .....At my work i used to have a  technicion onsite to power off a device in stack, now next time will try  that on live(as i have no lab ) but will still have tech present incase if it doesn't work as  expected. And if it works well, 2nd time i would have the tech's time

ANd Somu, Thanks for giving the documented link

And Reza, (i have no lab ) soooo Thanks for the lab test you did to make us aware that 3750E power turns on by itself after a couple of mins

[pedro juan roig roig]

Hi,

I just came across this discussion about turning off a switch remotely, and I was wondering if there is a way to put a switch into password recovery  mode remotely. This way it would be possible to deal with password recovery issues without having to go to the physical location where the switches are.

In fact, I have found that the Catalyst 2955 series switches do not use an external mode button for password recovery, but instead the use a break sequence as routers do for this:

http://www.cisco.com/en/US/products/hw/switches/ps628/products_password_recovery09186a0080094184.shtml

So the question is if you know any command or break sequence that gets a switch into the  switch:  prompt that applies to other kind of switches, like Catalyst 2960, 3560 or 3750.

Best Regards,

[Leo Laohoo]

Hi,
I just came across this discussion about turning off a switch remotely, and I was wondering if there is a way to put a switch into password recovery  mode remotely. This way it would be possible to deal with password recovery issues without having to go to the physical location where the switches are. 
In fact, I have found that the Catalyst 2955 series switches do not use an external mode button for password recovery, but instead the use a break sequence as routers do for this:
http://www.cisco.com/en/US/products/hw/switches/ps628/products_password_recovery09186a0080094184.shtml
So the question is if you know any command or break sequence that gets a switch into the  switch:  prompt that applies to other kind of switches, like Catalyst 2960, 3560 or 3750.
Best Regards,

I've responded to your post. 

[Meghna Muralinath]

We can only shut down the switch with these remote commands if the switch is a part of the stack fully, by which I mean it is not stuck in init .