Adding an additional switch to a stack

switch model: Aruba 2920 48G POE+

Adding to a stack which already has 3 switches. Is it just a matter of reordering the stacking cables or is additional config required?
LVL 2
Technical InformationAsked:
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

atlas_shudderedSr. Network EngineerCommented:
There are a few things that you need to confirm and configure prior to installing the new switch.  Also, it is best if you perform this process during a maintenance window as reboots may be necessary and there is a risk of hardware failure.

1.  Pull current running and startup configs from existing stack.
2.  Confirm the switch priorities in the current stack.  Make sure that your master switch is set to priority 15 and all other current switches are set to a priority less than 15 ( I generally decrease each additional switch by 2 - e.g. Master 15, Switch 2 - 13, Switch 3 - 11, etc.)
conf t
switch X priority Y
(example: switch 1 priority 15)
end
wr

Open in new window

3.  Power on the new switch apart from the stack and confirm the IOS version and package installed to the switch matches that of the stack.  If it does not, load the appropriate IOS to the switch and confirm that it boots to that image.  Don't rely on the stack to perform smart upgrade.  It is always a crap shoot and generally works out badly for the installer.
4.  Once the IOS is installed, configure the new switch's stack priority.  Same configuration as above.
5.  Rack the new switch and power it on.
6.  Cable the new switch into the stack via smartstack cabling.
It will take 5-10 minutes for the new switch to be recognized and be introduced to the existing stack.  If memory serves the new switch will go through 1-2 reboots during this period.
0
Technical InformationAuthor Commented:
Thanks so much
0
JustInCaseCommented:
There is a small issue that requested stacking is for Aruba switch, not Cisco.
;)
Aruba J972xA 2920-48G-PoE+ switch stacking.
0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
Top Threats of Q1 & How to Defend Against Them

WEBINAR: Join WatchGuard CTO and our Threat Research Team on Aug. 2nd to hear the findings from our Q1 Internet Security Report! Learn more about the top threats detected in the first quarter and how you can defend your business against them!

Technical InformationAuthor Commented:
@Predrag yes you are correct! Thanks
0
atlas_shudderedSr. Network EngineerCommented:
Ahhhh crap - I saw the 29xx and completely blew right past the rest of that.  Sorry about that.  Never support distracted.....
0
Technical InformationAuthor Commented:
No problem dude, now I know how to do it for both!

Awesome work guys
0
atlas_shudderedSr. Network EngineerCommented:
disappeared requestor
0
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Network Analysis

From novice to tech pro — start learning today.

Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.