I have a cisco 3750G with three sfp transcievers plugged in to the fiber ports.
It appears that when there is no traffic flowing through for a while, the ports will go dark, despite the fact of the cables still being connected and the transcievers being recognized by the switch.
Is there any way to "jump start" the transcievers so that I can get the ports up again?
Here's part of the "show int status" output
Port Name Status Vlan Duplex Speed Type
Gi1/0/25 stg1 connected trunk a-full a-1000 1000BaseLX SFP
Gi1/0/26 stg2 notconnect 1 auto auto 1000BaseLX SFP
Gi1/0/27 hw1 notconnect 1 auto auto Not Present
Gi1/0/28 is5 notconnect 1 auto auto 1000BaseSX SFP