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[AMP] [Standardized] Multi-Switch Considerations


Overview

If the Right Switch for a Standardized System (also known as a VLAN Switching System) requires more than one switch, AMP supports up to 63 switches in a single system.

Those switches need additional considerations:

  • All switches in the system must be from the SAME MANUFACTURER, but may be different models.
  • Switches must have 10Gb SFP+ ports.
  • Copper or fiber SFP+ cables connect the switches together.
  • The switches pass data between them over trunk connections and link aggregation groups.
  • Switch 1 must have 1 port reserved - the last RJ45 port - for network connection. All other ports on all other switches can be filled with Just Add Power devices.

Training Video

Prepare for setting up a system by watching the Standardized AMP Multi-Switch Setup video


Supported Switches

Luxul

Model Ports On POE Ports Max Devices SFP+ Ports Minimum Firmware
AMS-4424P Rear 24 24 2 v4.0.6
XMS-7048P Front 48 49† 2 v4.0.6
SW-610-24P-R Rear 24 24 4 v1.0.3
SW-610-48P-F Front 48 48 4 v1.0.3

Netgear

All Netgear GSM models have rear-facing ports. Switches marked with a "U" have much more POE than is needed for a Just Add Power system, but can be used if the "P" version is unavailable.

Model POE Ports Devices per Switch SFP+ Ports Minimum Firmware
GSM4210PX
(M4250-8G2XF-PoE+)
8 8 2 v13.0.2.34
GSM4212PX
(M4250-10G2XF-PoE+)
8 10 2 v13.0.2.34
GSM4212UX
(M4250-10G2XF-PoE++)
8 10 2 v13.0.2.34
GSM4230PX
(M4250-26G4XF-PoE+)
24 26 4 v13.0.2.34
GSM4248PX
(M4250-40G8XF-PoE+)
40 40 8 v13.0.2.34
GSM4248UX
(M4250-40G8XF-PoE++)
40 40 8 v13.0.2.34
GSM4328
(M4350-24G4XF)
24 24 4 v14.0.0.15
GSM4352
(M4350-48G4XF)
48 48 4 v14.0.0.15

Cisco

All Cisco CBS350 models have front-facing ports.

Disclaimer: Switching commands on Cisco CBS350 switches takes longer than expected (2-3 seconds) due to the way that CBS350 handles sockets for communication.

Model POE Ports Devices per Switch SFP+ Ports Minimum Firmware
CBS350-24P-4X 19 24 4 v3.1.1.7
CBS350-24FP-4X 24 24 4 v3.1.1.7
CBS350-48P-4X 37 48 4 v3.1.1.7
CBS350-48FP-4X 48 48 4 v3.1.1.7

All TP-Link models have front-facing ports

Model POE Ports Devices Per Switch SFP+ Ports Minimum Firmware

TL-SG3428XMP

24 24 4 Go to KB article

TL-SG3452XP

48 48 4 Go to KB article

†Maximum of 48 Receivers on a single switch. The 49th device can only be a Transmitter.


Stack vs Trunk

Standardized Configuration supports multi-switch systems in trunk topology.

Please see Stacking vs Trunking for more information.


Bandwidth Considerations

When multiple switches are used, the video bandwidth usage for Transmitters needs to be considered as the cables that connect switches have a maximum bandwidth capability that is much lower than a single switch.

To estimate Just Add Power Transmitter bandwidth usage:

Generation Average Bandwidth* Recommended TX per Gb
2GΩ/3G 400 Mbps 2.5
3G 500 Mbps 2
Max Color 850 Mbps 1

*Actual bandwidth will depend on source resolution, framerate, colorspace and content. The peak bandwidth output of a 3G Transmitter is 850 Mbps, most often during boot-up and source switching. The peak bandwidth output of a MaxColor Transmitter is 850 Mbps.

The number of SFP+ ports on each switch, combined with the number of switches in the system determine how many SFP+ links can be made between switches. Standardized Configuration builds a system so that half of the SFP+ ports connect to one switch, and the other half connect to another switch. This lets switches link together in a chain topology.


SFP+ Cables

Connecting multiple switches together requires a specialized cable, and cannot be carried over typical CatX wiring.

Most SFP+ cables are compatible, regardless of the manufacturer.

You can find SFP+ modules on Luxul's website, Cisco's website, Netgear's website, or you can use 3rd-party modules.

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  • 05-Jan-2024
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