We're looking at creating a dedicated network for IP cameras using either Aruba 2530's (J9775A) OR 2540's (JL357A) switches.
We currently have a 1Gb backbone with OM1 fiber that connects a campus of 12 buildings. However, we are also currently thinking about upgrading the fiber in the near future to allow for 10GbE between a majority of the buildings.
I see in the 2540 spec sheet that the SFP+ ports are 1/10GbE capable...I'd really like to confirm whether we can set up all 2540 switches with 1Gb fiber modules until we can upgrade the fiber for 10GbE.
If possible, are there any special commands that need performed to use Aruba 1Gb SFP modules in the SPF+ ports of the 2540 switches? Will the SFP+ ports auto sense the SFP module speed or will they need to be manually set to 1Gb?
I see in the 2540 Datasheet that there's a Note: No support for 10G LRM (J9152D) and no support for 10G 7m DAC (J9285D).
We will be upgrading to OM3 or OM4 fiber with 2 runs that are around 400m. Everything else will be less than 300m. 10G SR transceivers should work for us.
Yes, as written, there are some restrictions about some Transceivers on Aruba 2540 Switch Series...
Pay attention that OM4 quality Multi-Mode (MM) Fiber Optic cables are capable of sustaining 10Gbps under 400 meters...and OM3 MM FO cables work at 10Gbps under 300 meters.
In both cases if the FO cable is a 50/125 um (Core/Cladding diameters in micro meters).
LR works with Single Mode (SM) Fiber Optic cables up to 10 km (Cable has a 9/125 um Core/Cladding).
If your Backbones are going to be made of MM Fiber Optic runs go with OM4 and you will be on the safe side on runs under 400 meters with original supported Aruba Transceivers.
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