Standing up 25G uplinks from a QFX5120-48Y towards a second switch and a couple of new servers. Before I hand the segment over I want the link settings written down properly, and I cannot find where auto-negotiation lives on these ports. Juniper QFX5120-48Y 25G optics in the SFP28 cages et…
Replacing a customer's incumbent aggregation pair with CloudEngine kit, and the single link that refuses to come up is the 100GE feed into their packet broker. Everything else on the switch went in without drama. Huawei CloudEngine 6800, 100GE port 100GBASE-SR4 QSFP28 modules, Huawei parts, one at…
We are collapsing two aggregation rows onto FortiSwitch, and the last piece is a 25G interconnect between an FS2048 and an FS648 in adjacent racks. Everything else in the design came up on the first attempt; this one link refuses to. FortiSwitch 2048, 25G front-panel port FortiSwitch 648, 25G…
We are bringing up a leaf on an Accton AS9716-32D running SONiC master (build master.207726). Four of the 400G-capable ports have to run at 100G towards a firewall pair, and not one of them will link. Accton AS9716-32D, SONiC master.207726 INNOLIGHT TR-FC13R-N00 QSFP28 LR4 in the switch cage…
A brand-new retail Intel E810-XXVDA2 on Windows Server 2022 (Intel driver 1.12.164.0 from release package 28) was connected to an SFP28 port of a Ubiquiti USW-Pro-Aggregation switch. With an SFP28 DAC the link came up at 25G immediately, but with SFP28 optical transceivers (Ubiquiti…
