Flexstack catalyst cisco 2960XR problem

[max15]

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!

[Deepak Kumar]

Hi,

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

Regards,

Deepak Kumar

[max15]

The log is in attach

[Deepak Kumar]

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

[balaji.bandi]

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

[max15]

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.

[max15]

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.

[paul driver]

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

[max15]

Hi,

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

[balaji.bandi]

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

have you rebooted complete stack ?

[max15]

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

[balaji.bandi]

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.

[max15]

attach config boot switches.

[paul driver]

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 

[max15]

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 =(