USW-EnterpriseXG-24 links within a daisy chain setup
USW-EnterpriseXG-24 links within a daisy chain setup
Hi, your setup involves connecting multiple devices using different port configurations. Based on your description, it seems you're trying to create a daisy chain with XG25 and XG24 devices, but you're encountering limitations with the uplink ports. It looks like you might need specific settings or configurations to enable this chaining, as current documentation doesn't clearly support this arrangement for XG24 models. You could reach out to the manufacturer for guidance on daisy-chaining these devices. Let me know if you'd like help drafting a query!
Hi, it seems the XG24 switches are limited to a single autonegotiation rate for both SFP+ ports. That means if one port connects to a 25G port, the other will also negotiate down to 10G, no matter what the other end supports. For full performance, consider linking the DM to a copper 10G port using an RJ45 transceiver, then connect the switches via SFP+ if you require the complete 25G link between them. This discussion is covered in the unifi forum thread.
By default this should function properly. If it isn’t working, check the settings on your switches. Your notes about the 10Gb indicate that other switches will only communicate at 10Gb even when using 25G ports due to the initial negotiation link between the two SFP+ ports from the DM.
no setup needed, I removed the box and connected it to the network, pressed the adopt button and entered the names. when two cables are linked to the same switch, the lights stay on. if I connect one of the 25G ports to a different switch, the lights turn off—either one works or none do. keeping the second port plugged while the first is disconnected makes the second one function. in the settings it seems nothing is currently connected.
According to the datasheet, the two SFP28 ports cannot operate at mixed speeds when running in 25Gbps mode. If one port is set to 25Gbps, the others will be restricted to that speed as well. Mixed speeds are only possible when all ports are configured for either 1Gbps or 10Gbps. This differs from most equipment where you can combine different speeds. In this scenario, both SFP28 ports must be set to a single speed—either 25Gbps together or 1/10Gbps individually.
I can't create visual diagrams directly, but I can describe how the connections should look and what the issues might mean.
Imagine a simple layout showing the ports and cables. The text suggests there may be a loop in the network, which could cause one port to stay inactive while the other works. A spanning tree would block one of the ports, explaining why both aren't active together.
Regarding the GUI feedback, it might indicate that both interfaces are down even after fixing one, pointing to a potential problem with your SFP or DAC cables.
I’m focusing on a different approach. I’m not using Dream Machine, just connecting three XG24 devices via a 25G port. The issue isn’t the cable, since both Ubiquity and OM4 cables are working fine when used alone or together. This setup is functioning properly.
That matches what you see in your first image. When I tell you it doesn’t work, it appears as if the port light isn’t turning on and the controller shows no connection.