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Correct SFP+ connector for link to ISP

jake_dotson
New Contributor II
Can I run a 1G connection through a 10GE LR SFP or do I need to replace it with a 1G SFP connector?

7 REPLIES 7

chris_hill_4zpl
New Contributor III
Sorry to wreck this train but I have used LRs configured temporarily at 1G speed while we wait for the distant end to be upgraded and capable of 10g:

SSH@0XXX-RTR-G1#sh media | inc 1/2/2
Port 1/2/2:  Type  : 10GE LR 10km ((SFP+))
SSH@0XXX-RTR-G1#sh int br | inc 1/2/2
1/2/2      Up      Forward Full 1G    None  No  1    0   609c.9fb4.8ab8  

Thanks for the reply Chill. Funny you would say that as I got off of the phone not to long ago with the manufacturer that told me the same thing. Thanks for supplying the config to go with your comment.

Absolutely - full disclosure though, you will likely be told that it's not supported