How to Form a Catalyst 3850 Data-Stack and Power-Stack

[santosh kumar]

Hi,

I got cisco 3850 2 switches and connected in the stack.

It's observed that the version of the switches stack-ports is different. Is there any issue and how to update it.

Switch Ports Model SW Version SW Image Mode
------ ----- ----- ---------- ---------- ----
* 1 56 WS-C3850-48P 16.3.8 CAT3K_CAA-UNIVERSALK9 INSTALL
2 56 WS-C3850-48P 16.3.8 CAT3K_CAA-UNIVERSALK9 INSTALL

Switch# Role Mac Address Priority Version State
------------------------------------------------------------
*1 Active 682c.7b6d.e280 15 V07 Ready
2 Standby 6cfa.894f.8b80 1 V03 Ready

[Seb Rupik · Accepted solution]

Hi there,

They are hardware version numbers. In all my years I've never seen an upgrade caveat mentioning incompatibility between different hardware versions.

You should be fine to upgrade.

cheers,

Seb.

[Martin L]

Yup, I would not worry about them,. Like Seb said those hardware version numbers do not match and you got 2 switches in stack.
if there is a software mismatch; then u got V-mismatch message and problem of no stack. solution to V-mismatch is software auto upgrade enable command on master to push software version down to partners.

see https://community.cisco.com/t5/networking-documents/using-the-auto-upgrade-feature-on-the-cisco-catalyst-3850/ta-p/3140319

[balaji.bandi]

Not that you need much worry on that,  you an upgrade the stack (make sure you read the realease notes the one you looking for upgrade.

here is the steps i follow ;

1. take the configuraion backup out of the box.

2. read the realease notes  and compatability and features you running.

3. upgrade in maintenance window/(since switch required reboot,)