I'm starting out with networking and I've hit a snag while trying to replace an old Zyxel switch with an HPE Aruba switch. In my setup, I have a Dell N3024, a Zyxel GS1920-24HP, and an HPE Aruba 6000 24G Class4 switch. In the original configuration, my Dell was connected to the Zyxel without any issues. However, after switching to the Aruba, the Dell side isn't recognizing the link, even though the Aruba does detect it. I've tested the same SFP modules that worked fine with the Zyxel setup and even some that worked in the lab. Currently, the Zyxel is still connected as a converter, providing uplink via RJ45 to the Aruba. This all took place during a long day that culminated in a confusing late-night attempt to fix everything. Any advice or insights would be greatly appreciated!
3 Answers
I appreciate the tips! I'm definitely going to check for that 'allow weird SFPs' option and give it a power cycle. It’s tricky because while the SFPs work fine in the Dell with Zyxel, they just won’t connect to the Aruba. It feels a bit like ghost hunting trying to track down what’s going wrong!
You're right about vendor coding—it’s a common issue with SFP transceivers. Just because an SFP works with Zyxel doesn’t mean it will work with your Aruba switch. Check the configurations on your Aruba to see if there’s an option to allow third-party SFPs. Also, when you connect the SFPs, try power cycling the Aruba to see if that helps.
It sounds like you might have SFP modules that are coded specifically for certain brands of switches. Many switches require SFPs that are coded for compatibility, which could explain why they work with the Zyxel but not with the Aruba. Sometimes, you can execute a command on the switch to enable support for 'unsupported' transceivers, which might solve your problem. Where did you get those SFPs? Also, what model are they?
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