topic Re: Flexstack catalyst cisco 2960XR problem in Switching

Flexstack catalyst cisco 2960XR problem

max15 — Wed, 20 Mar 2019 13:34:29 GMT

Good afternoon, colleagues!
I have a problem with association of a stack cisco WS-C2960RX-48FPS-L . 6 switches integrated, 2 more did not integrate.
I changed stack module, cable stack, priority, provision, renumber, fully cleared all configs to make switches as from factory, changed firmware. However the problem did not disappear.

Tried on ios 15.2.4.e3, 15.2.4.e7, 15.2.6.e2.
If it's necessary I will send a config. Help me!!! Thank you!

Re: Flexstack catalyst cisco 2960XR problem

Deepak Kumar — Wed, 20 Mar 2019 13:51:47 GMT

Hi,

Please share logs, error message and configure of the existing stack and new switches as well.

Regards,

Deepak Kumar

Re: Flexstack catalyst cisco 2960XR problem

max15 — Wed, 20 Mar 2019 14:45:33 GMT

The log is in attach

Re: Flexstack catalyst cisco 2960XR problem

balaji.bandi — Wed, 20 Mar 2019 14:48:15 GMT

adding to other post, please post the configuration and logs

also look below documents for reference :

http://ciscorouterswitch.over-blog.com/2018/03/how-to-stack-cisco-catalyst-2960-x-or-2960-xr-series-switches.html

https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst2960xr/software/15_2_6_e/configuration_guide/b_1526e_consolidated_2960xr_cg/b_1526e_consolidated_2960xr_cg_chapter_01101101.html

https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst2960x/software/15_2_6_e/release_notes/rn-1526e2-2960x-xr.html

Re: Flexstack catalyst cisco 2960XR problem

paul driver — Wed, 20 Mar 2019 14:52:24 GMT

Hello

Make sure all switch support the same software/feature set
Are you using the correct cabling?
Are the cabled in the correct way?

sh switch detail
sh switch stak-ports

Re: Flexstack catalyst cisco 2960XR problem

max15 — Wed, 20 Mar 2019 15:24:44 GMT

Hi,

All firmwares of one version, wire all are connected correctly, a photo in attachment.

Re: Flexstack catalyst cisco 2960XR problem

max15 — Wed, 20 Mar 2019 15:31:03 GMT

The posts I read but nothing useful has not learned, all adjusted as me. below I attach a config and a photo of connection of wires.The posts I read but nothing useful has not learned, all adjusted as me. below I attach a config and a photo of connection of wires.

Re: Flexstack catalyst cisco 2960XR problem

Deepak Kumar — Wed, 20 Mar 2019 15:37:26 GMT

Hi,

It seems there are two different stacks are operating and Stack ports are showing down. Have you verified all stack cables? Are connected in the correct order? Have you verified Switch number configuration?

Share the configuration and some logs as @paul driver requested.

Regards,

Deepak Kumar

Re: Flexstack catalyst cisco 2960XR problem

max15 — Wed, 20 Mar 2019 17:21:35 GMT

Hi,
All firmwares of one version, wire all are connected correctly, a photo in attachment.

Re: Flexstack catalyst cisco 2960XR problem

max15 — Wed, 20 Mar 2019 17:21:52 GMT

Re: Flexstack catalyst cisco 2960XR problem

balaji.bandi — Wed, 20 Mar 2019 17:23:24 GMT

quick look - I may be wrong, your output some switches uptime different time, some are less uptime.

have you rebooted complete stack ?

Re: Flexstack catalyst cisco 2960XR problem

paul driver — Wed, 20 Mar 2019 19:41:54 GMT

Hello

Power the stack down

resest flex modules and cables in switch 1&6

Power stack back up master first wait 30 -40 secs then the next switch etc..

test again

Re: Flexstack catalyst cisco 2960XR problem

max15 — Thu, 21 Mar 2019 06:43:44 GMT

Hi, Yes, I rebooted the full stack at the same time.

Re: Flexstack catalyst cisco 2960XR problem

balaji.bandi — Thu, 21 Mar 2019 08:10:02 GMT

Other suggestion was mentioned by @paul driver , you can try that option.

Connect the console cable to master switch (keep logg all the logging of the console so we can see what is wrong)

1. Turn on the Master switch1 ....after minute Turn on swtch 2 ---so on once all booted.

2. show switch

3. post the logs to forums to have a look.

Re: Flexstack catalyst cisco 2960XR problem

max15 — Thu, 21 Mar 2019 08:35:15 GMT

I did as you advised, disconnected the stack modules, wires, after connecting the first stack, I waited 40 sec and started connecting the stack wires and the follower switch. I attach the config all left without changes =(

Re: Flexstack catalyst cisco 2960XR problem

max15 — Thu, 21 Mar 2019 08:57:36 GMT

attach config boot switches.

Re: Flexstack catalyst cisco 2960XR problem

paul driver — Thu, 21 Mar 2019 09:19:13 GMT

Hello

Seams to suggest you have problem either with one of the flex modules in sw1 or 6 or a flex cable.
sh switch stack-ports summary

Re: Flexstack catalyst cisco 2960XR problem

max15 — Thu, 21 Mar 2019 09:46:52 GMT

it does not work, and everything works with these wires and modules. I tried to interchange the position of them.

Switch#show switch stack-ports ?
| Output modifiers
<cr>

Switch#show switch stack-ports
Switch #    Port 1       Port 2
--------    ------       ------
    1          Down          Ok
    2           Ok           Ok
    3           Ok           Ok
    4           Ok           Ok
    5           Ok           Ok
    6           Ok          Down

Re: Flexstack catalyst cisco 2960XR problem

paul driver — Thu, 21 Mar 2019 09:55:05 GMT

Hello

@max15 wrote:

it does not work, and everything works with these wires and modules. I tried to interchange the position of them.

Not so sure i understand - you say if you change the modules around into the other switches then those same modules work but just not in switch 1 and 6?

Re: Flexstack catalyst cisco 2960XR problem

max15 — Thu, 21 Mar 2019 15:49:39 GMT

all modules work in switches and in the first stack and in the second if you change them, for some reason they are not friends with each other ,both stacks are not connected to one. But the modules and the wire stack work properly.