[j-nsp] EX4100/EX4400 1GE autoneg issues on SFP+ ports

[Bernhard Schmidt]

Am 11.11.24 um 00:39 schrieb Crist Clark:
> https://www.juniper.net/documentation/us/en/software/junos/cli-reference/topics/ref/statement/auto-negotiation-edit-interfaces.html <https://www.juniper.net/documentation/us/en/software/junos/cli-reference/topics/ref/statement/auto-negotiation-edit-interfaces.html>
> 
> NOTE: 1G optical transceivers do not support auto-negotiation on EX4100 
> 1G/10G uplink module (PIC 1/PIC 2) and EX4400 1G/10G interface. 1G-T 
> supports auto-negotiation on these ports.

Shit, I figured as much.

In the lab I have just successfully tested Arista SFP-10G-RA-1G-LX (rate 
adapting transceivers, 10G on the electrical side and 1G on the optical 
side) and the link came up just fine. So that's an option for 
small-scale, but these transceivers are quite expensive. Haven't found 
them 3rd party yet.

Bernhard