Campus Switching and Routing

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New Contributor
Posts: 3
Registered: ‎03-22-2017

Aruba Central and Stacking

It seems like we had to disable stacking and enable the REST interface on our switches to enable Aruba Central and provision via Aruba Activate.  Is there any way to manage switches in Aruba Central and have them in a backplane stack or VSF?  We're becoming very concerned that stacking and Aruba Central are mutually exclusive.  Thanks.

Occasional Contributor II
Posts: 18
Registered: ‎06-28-2016

Re: Aruba Central and Stacking

[ Edited ]

AFAIK the Aruba Central Cloud management on ArubaOS-Switch based Switches (like [*] 2920, 2930F, 3800, 3810 and 5400R) seems to be supported only on standalone units (and starting with very recent 16.02 and 16.03 software branches), it's unsupported on units deployed using (backplane/frontplane) stacking.

On 16.03 release notes an entire paragraph looks illuminating:

"Aruba Central Cloud management

Cloud management using Aruba Central is now available on the Aruba 3810 Switch Series enabling use cases such as Zero Touch Provisioning (ZTP) with Activate and Central which is ideal for branch office deployments. This is available only on standalone units and is not supported when stacking is enabled on the Aruba 3810."

 

[*] Edit: supported also on Aruba 2540...

New Contributor
Posts: 3
Registered: ‎03-22-2017

Re: Aruba Central and Stacking

Thanks for taking the time to reply, parnassus.

 

This seems like a huge oversight.  We just attended Atmosphere 2017 and we couldn't stop hearing about all the TLC and R&D that's being put into Aruba Central.  A good chunk of one of the keynotes was dedicated to driving this point home.

 

How can it not support a staple feature like stacking?  Does it also not support...switching?

Occasional Contributor II
Posts: 18
Registered: ‎06-28-2016

Re: Aruba Central and Stacking

More...on HPE ArubaOS-Switch Management and Configuration Guide for K/KA/KB.16.03 on Chapter 22 "Aruba Central Integration" [*]...there you will find a list of main restrictions:

 

Restrictions:

  • Switch communication to Aruba Central is not supported via OoBM.
  • Aruba-central is not supported in FIPS switches and it will be disabled by default.
  • Aruba-central is not supported in Stack switches and it will be disabled by default.

So, despite the 3rd restriction to be totally clear should have been (IMHO) worded as "Aruba-central is not supported in frontplane/backplane stacked switches and it will be disabled by default", it really looks like stacking configurations (and so also VSF deployments) and Aruba Central Integration are - at least actually - mutually exclusive.

 

OTOH Aruba Central Integration seems a feature marketed to be used exactly on branch offices where no IT personnel are present (documentation reports: Branch Offices, Retail Stores and so forth) so, probably (my personal deduction), on sites where stacked switches' deployments were tought as very uncommon.

 

[*] Aruba Central Integrationd provides those features:

  • ZTP Zero Touch Provisioning
  • Network Management and/or Remote Monitoring
  • Events/Alerts Notification
  • Configuration
  • Firmware Management
New Contributor
Posts: 2
Registered: ‎03-23-2017

Re: Aruba Central and Stacking

Nathan -

  We're working on bringing the ability for stacked switches (both fron and backplane) to be managed by Central.

 

Are you looking for remote management of stacks of for the ability to simply use a pre-configured stack? Also, which series of switches are you trying to onboard to Central?

 

Thanks,

Sreenath Seshadri

Global Product Line Manager - Campus Switch Software

New Contributor
Posts: 3
Registered: ‎03-22-2017

Re: Aruba Central and Stacking

More background information that might help clarify our situation.  Our locations are almost exclusively considered branch offices without dedicate on-site staff, though we do have field technicians that visit sites as needed.  All the same, the number of devices (workstations, access points, IP phones, etc) warrants significant port density, and it's not uncommon for us to put 4 x 48 switches in a site, and in these cases we prefer to have a single stack for that site.  While these stacks allow for easy management of all that switches at a single site, we have roughly 25 sites, and we'd prefer to manage all from a single pane of glass rather than as 25 individual stacks.

 

We would like to manage pre-configured stacks, but if we had to break a stack, join the switches to Central, and then re-stack, it wouldn't be the end of the world.

 

We are running on the 2920 almost exclusively, all running 16.03, which as of the time of this writing is the most current in GA.

 

Can you offer any timeline on when stacking will be supported in Central?  Will you be able to manage pre-configured stacks, or will you need to join to Central and then configure the stack?

 

Thanks.

New Contributor
Posts: 2
Registered: ‎03-23-2017

Re: Aruba Central and Stacking

Thanks for providing the deployment scenario. I've asked the account team to provide the BOM to know more about the SKUs you have and will reach out through the account team offline.

 

Sreenath Seshadri

Global Product Line Manager - Campus Switch Software

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