Can't get combo ports to light up. I have 4 different CRS312 on my desk, trying a combination of the following:
1. 2x MT RJ01 (cable between)
2. 2x MT S-31DLC20D (lc single mode jumper known good between)
3. 2x FS.com SFP1G-LX-31 (lc single mode jumper known good between)
I've tried forcing 1gb/s speed, I've tried rebooting, I've tried forcing "sfp" on both interfaces... nothing I'm doing here will cause the link to become active. Running 7.7.