topic Add a 3rd 3850 to a stack? in Wireless

Add a 3rd 3850 to a stack?

Carl Edwards — Mon, 05 Jul 2021 07:17:35 GMT

I've done this twice now and each time it wipes the stack config?

Anybody confirm the correct way to action?

Thanks in advance,

Add a 3rd 3850 to a stack?

Sandeep Choudhary — Thu, 27 Feb 2014 11:57:10 GMT

Hi Carl,

Check these points:

1. Make sure that the stack cables are tightly and securely in each switch(don't forget to loop the last cable back up to switch 1 to complete the ring)

2. Set the PRIORITY of your desired "Active" ( Master) to 15 and boot first, number the switch you would like to be the "Standby" 14 and reload him. The rest of the switches will become "Members" "renumbering" is great, but you want to set priority if you want to dictate who becomes Active/Standby.

3. run "show switch stack-ports summary" and post output

Regards

Dont forget to rate helpful posts

Add a 3rd 3850 to a stack?

Sandeep Choudhary — Thu, 27 Feb 2014 11:59:07 GMT

Check this link:

http://www.cisco.com/c/en/us/products/collateral/switches/catalyst-3850-series-switches/deployment_guide_c07-727067.html#_Toc350855358

Regards

Add a 3rd 3850 to a stack?

Rasika Nayanajith — Sat, 01 Mar 2014 02:39:46 GMT

HI Carl,

This doc may be a useful reference

http://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst3850/software/release/3se/consolidated_guide/configuration_guide/b_consolidated_3850_3se_cg/b_consolidated_3850_3se_cg_chapter_01101101.html#task_1177470

HTH

Rasika

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Thanks Guys,Really helpful

Carl Edwards — Tue, 18 Mar 2014 09:03:07 GMT

Thanks Guys,

Really helpful links, I also had to get the switchs all on the same ios. I found this brief post helpful https://supportforums.cisco.com/discussion/12084291/adding-3850-make-switch-stack . I should of searched before a bit better, hope this helps others.

Lessons learned, make sure the switch your adding is turned off before adding. Otherwise the stack will reload & possibly lose the config on all.

Best,

Also, keep in mind the amount

Amanda Cockrell — Tue, 18 Mar 2014 13:05:40 GMT

Also, keep in mind the amount of power you are adding (the switch iteslf and any POE devices) if you are using a UPS.