I have an ex2300-24f and ex-2300-c that I'm trying to connect via fiber and having no luck.

Both of these switches are factory default with no config, they are supposed to be dumb as hell. This is the requirement.

If a SFP is used the connection comes up on the 24 port switch, but never on the 12 port switch. Tried multiple SFPs, and fiber patches. Tried both sfp ports on the 12p, and 3 on the 24p. Always the same, the 24p switch shows port up and packets exiting, 0 packets incoming.

On the 12p there are no packets received, none sent. Port down hard

If i attach them with random copper ports it works as expected.

I'm running out of ideas here

Edit: here's the solution https://supportportal.juniper.net/s/article/EX2300-C-uplink-ports-issue-with-1g-fiber-connection

Is anyone here using a Junos based Route Server with IXPManager and if so, how are you handling pulling/pushing of config from IXPManager to the RS?