Our main core is two redundant Force 10/Dell Switches. The core Force10/Dell are the spanning tree root. The model number of the Dell/Force 10 switches are S4048T-ON running Software Version 9.11(2.1). I am in the process of introducing HP 2530 switches. I have updated the HP/Aruba switches to YA.16.06.0006 release.
The Dell/Force 10 switches utilize RSTP. HP is capable of doing RSTP and i have enabled it
From the Dell Core Switch to the HP Switches is roughly 200 feet maximum. Being as we had a few strands of fiber I decided to use multi-mode between the switches. The switches link up perfectly fine.
After linking up, multiple problems are experienced. In one instance, the HP/Aruba stole the spanning tree root even though it is set to 32768. The live core switch is unable to SSH into the HP/ARUBA. Computers that are connected to the HP/ARUBA are unable to ssh to the core. There is also issues with access at certain times with the end user devices plugged into the new HP/ARUBA. I'm pretty sure this is all related to the spanning tree problem.
I have engaged HP and Dell to help assist with this issue. HP was called first and we did a wireshark and didn't see ANY BPDU packets coming down the pipe. We then had a group call with Dell who spent quite a bit of time looking into the issue. Their conclusion today is that Dell is sending the BPDU and HP isn't receiving them.
To add into this problem, we have a copper line that is ran between the two spots. When we plug the copper line in, everything works. I tried a 10G SFP and 1G SFP in the Dell. I also tried another 1G SFP of the same model I had for the HP, same issue.
This has baffled myself and all the engineers I have engaged. You would think this is a connectivity issue as the copper works. Looking to see if anyone has experienced this or any insight.
HP/ARUBA Switch Config : https://pastebin.com/embed_js/NCSQ1K1q
Port 49 is the fiber which isnt connected currently
Port 48 is the copper which works
Dell/Force 10 Core Config : https://pastebin.com/embed_js/xP3Uti6d
Port 1/52/1 is the fiber which isnt connected currently
Port 1/19 is the copper which works
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