Can a 10GbE Switch SFP+ Port be Connected to a Gigabit Switch SFP Port? - NADDOD Blog

In summary, most SFP+ ports can support SFP optical modules, but SFP ports cannot support SFP+ optical modules.

Can a 10GbE Switch SFP+ Port be Connected to a Gigabit Switch SFP Port? - NADDOD Blog

What is the role of the SFP port of a Gigabit switch?, by Kirk Lucero

Can the 10GE switch SFP+ port be connected to the 1GE switch SFP port?

Is SFP Compatible With SFP+? Can 10G SFP+ Run at 1G SFP Port?

Understanding SFP to SFP+ Compatibility: A Comprehensive Guide, by 沈竹子

SODOLA 6 Port 2.5G Easy Web Managed Switch, 4 x 2.5G Base-T Ports, 2 x 10G SFP+, Static Aggregation,QoS/VLAN/IGMP, 2.5Gb Network Homelab Switch : Electronics

200G QSFP56 InfiniBand HDR Mellanox LinkX AOC Cables

networking - Is it possible to have a link between a 10GbE NIC and 1GbE Switch with a SFP+ DAC? - Server Fault

1G/10G Enterprise Switches