3850 switches Data Stack

[waqas.ahmed.1987]

Hello everyone,

I want to add one more ws-c3850-48t in already stacked switches of ws-c3850-48P.

just confirm now switch not POE so it will be stack or not. and current switch stack user interrupt?

Thanku.

[Seb Rupik · Accepted solution]

Hi there,

Make sure the switch you are trying to add is running the same version of IOS-XE and in the same BUNDLE/ INSTALL mode as the rest of the stack. It is also good practice to pre-provision the switch:

!
switch x provision ws-c3850-48t
!

It may be prudent at this time to configure your switch priority values. You should select the stack master to be the switch which does not connect the uplink:

!
switch x priority 15
!

Following these steps should ensure there is no disruption to user services.

It does not matter that the switch you are adding does not support PoE.

cheers,

Seb.

[waqas.ahmed.1987]

first, thank you sab for helping me.

in my case, i already have two switches stack and both switches have uplink work as EtherChannel, now I am going to add the third switch in the existing stack, so before adding new switch should i disable uplink port of master switch???

[Seb Rupik · Accepted solution]

Hi there,

Configuring a stack such that the master switch doesn't not connect an uplink is only guidance.

If you can schedule the work in a change window, then yes removing the port-channel member from the master switch and configuring it on switch3 would be ideal. You can do this before or after switch3 has joined the stack.

cheers,

Seb.