Extreme Networks

RichardH · 08-10-2023

I'm replacing an old Dell switch with a 5420M-24 with a fiber uplink. The old switch worked fine with it's SFP fiber connection but when I moved it to the 5420 I can't get the switch to talk to the network at all. I enabled Ethernet mode on the 5420 ...

RichardH · 08-12-2023

It turns out that the problem was stupid simple. I worked with Extreme technical support and we discovered that each end of the fiber connection was configured differently. :facepalm: One side was configured for 1000 full duplex and the other for ...

RichardH · 08-10-2023

That's a good thought about swapping optics on both sides. The only thing that gets me is that I am using the same SFP module that I was using in the old switch, so the optics should be OK.I'm not sure about the VLANs matching on both sides. Our ne...

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Can't get a new 5400 to use SFP module uplink

Re: Can't get a new 5400 to use SFP module uplink

Re: Can't get a new 5400 to use SFP module uplink