Cisco 3560 Core Switches

Looking for a second oppinion here. Customer has a couple data closets (each tied to copper in various parts of the building) and would like to use Cisco 3560 as stackable switches in Trunk mode (no spanning tree) for failover and redundancy. Please the the attached diagram. Will the 3560 accomplish this, and what Image is recommended?
Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

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.

I'm not positive but i thought 3745 was the only stackable switch? Unless you mean just connected with a fibre or cross-over cable.
3560's don't have the "stack" feature, that is only supported on the 3750's.

You can cluster the 3560's but I don't believe that is what you're trying to achieve, see the following link for the differences between a cluster and a stack:
Yess you need 3750 Switch which supports stacking.
Challenges in Government Cyber Security

Has cyber security been a challenge in your government organization? Are you looking to improve your government's network security? Learn more about how to improve your government organization's security by viewing our on-demand webinar!

Don JohnstonInstructorCommented:
As stated previously, you will need the 3700's to do what Cisco calls "stacking". However, you could connect the switches with the gig ports and put them in a cluster. Instead of the interconnects being backplane speed, they'll only be 1gbs though.

Is switch1, switch2 and client switch1 going to be forwarding traffic in the same VLAN/broadcast domain? If so, you'll need spanning tree.
AccunetCommAuthor Commented:
Is there a particular image required to cluster on the 3560's or Stack on the 3750's.
Don JohnstonInstructorCommented:
No. All 3700's stack and I believe all the others can cluster.
To stack using the 3750's you don't need to have the same IOS image but you do need to have the same level of IOS (LAN only, IP), you can't stack a LAN only image with a IP image and vice versa.

Clustering works across multiple versions and multiple device types, further up in the link I pasted above are some caveats around which devices should be cluster manager, but in your setup I don't think it will be much of an issue.

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
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

From novice to tech pro — start learning today.