Right here is my dilemma, I have a Allied Telesis AT-9000/28SP which is a 1Gb switch, I need to connect this to a Cisco Meraki MS425 32 which is a 10Gb switch.
The AT-9000 has 28 SFP ports and 4 copper ports. The MS425 has 32 SFP+ ports and no copper ports. Do SFP+ modules that are backwards compatible to 1Gb speeds exist???