Extreme Networks

Upon using this commandint gigabitEthernet 1/32speed 1000I keep getting the errorError: port 1/32, Can’t set admin speed on this port.

What model gbic/sfp do I need for single mode yellow fiber going 1.5 miles? I’ve been looking around but can’t find any info. I have a 1gb gbic in an Etherwan EasyPoe Box going 1.5 miles using single mode yellow fiber into an extreme vsp-7400-48y. I ...