40g DAC between Juniper switches not working
I tried to connect Juniper EX4300 switches with Juniper QFX5100 switches with 40gbps DAC cables (QSFP+-40G-CU3M). Connection didn’t come up. First I thought I had to take them out of the VC (standard those QSFP slots on EX4300 are VC ports), but even after changing that it didn’t work. Google search later I found out […]
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