Wired Intelligent Edge

last person joined: 3 days ago 

Bring performance and reliability to your network with the Aruba Core, Aggregation, and Access layer switches. Discuss the latest features and functionality of the ArubaOS-Switch and ArubaOS-CX devices, and find ways to improve security across your network to bring together a mobile first solution.
Expand all | Collapse all

Aruba CX switches on HPE Rack G2: any experience?

This thread has been viewed 13 times
  • 1.  Aruba CX switches on HPE Rack G2: any experience?

    Posted Jun 24, 2021 05:58 PM

    Has anybody experience about installing Aruba CX switches (like Aruba 8360) on a 42U HPE Rack G2?

    I have doubts about mounting the Aruba 8360 (with 4 post kit) backward or, if possible (it should), instead moving backward the two pairs of uprights (front and rear) with respect to their factory position (the two pairs are perfectly positioned for a Rack hosting Servers - Servers' fronts generally haven't cabling - but having to install some Switches with, each one, 40 or more fiber optic cable is not the same thing).

    HPE Rack G2 front side is the cold side, read is hot side. Aruba 8360 airflow is port-to-Power so the Aruba 8360 front needs to be installed on the front of the HPE Rack G2.

    Davide Poletto

  • 2.  RE: Aruba CX switches on HPE Rack G2: any experience?

    Posted Jun 25, 2021 02:30 AM
    The 8360 support port to power and power to port, you just have to choose when ordering or replace fans and power supplies with the right one.

    Laurent from Brest / France
    Network Engineer

  • 3.  RE: Aruba CX switches on HPE Rack G2: any experience?

    Posted Jun 25, 2021 03:33 AM
    Hello Laurent, we already know the Port-to-Power/Power-to-Port options about Fan Modules and PSUs of Aruba CX Switches...here the points are others.

    1. given that we want (or that we were forced) to use the HPE Rack G2
    2. given that we know the HPE Rack G2 is naturally suitable (exactly as is, factory assembled) more for HPE Servers installation than for Networking switches installation.
    3. given that we want to see the Aruba 8360 front side on the HPE Rack G2 front side (that condition matches our cold isle side)
    4. given that the Aruba 8360 is/was ordered as Port-to-Power (to match the cold/hot isle separation AND the HPE Rack G2 placement...we like the rectangular green HPE logo to be on the cold side)
    The two main questions are:

    • Should we try to move backward (say just 15 cm) the two pairs of uprights of the HPE Rack G2 to cope with the fact we are dealing with a Switch installation and not with a Server installation (cabling of fiber optics patches into the Switch front-plane will be otherwise impacted given the short space between the rack's door and the front of the switch in the uprights default positions)

    • Should we try to install the Aruba 8360 switches (we have a pair) on their Rail Kits in a inner position compared to the normal one - given that is possible - and do this to gain those 15 cm we need in the front side?

    It's easier trying to visualize it than to explain it...imagine a Server placed into a Rack made for Server where cabling is supposed to be placed on the back...and place a Switch instead (with the requirement to have the cold/hot Switch/Rack side alignments as explained above).

    We do understand that HPE Rack G2 isn't (wasn't) the best choice for networking device deployment (Aruba what's about to crate a racking solution "made by Aruba" to pair to what is "made by HPE"?)...but this is what we have now and we need to deal with.

    The HPE Rack G2 is very good...for networking...BUT only if you look at it reversed (front door on the back, back doors on the front) [*]...and you place it reversed with its back on the cold isle side. Technically speaking I don't see an issue in doing that but we first want to know if there are alternatives.

    [*] we need to consider that back upright pairs have pre-installed the cabling management brackets...and those are pretty useful in the positions they are...otherwise not only we need to move backwards the upright pairs but we need to partly relocate cabling management brackets on the frontal upright pairs since on the back of the Rack we have cabling ingress and then cables need to pass back to front...up to the Switches...so we need some form of cabling management system to help us to manage those runs (roughly 80 or more fibers)

    Davide Poletto