Cisco – Mixing SFP’s with different speeds

You can do this with FCoE. I've seen vendors call this "Unified Network" or "Converged Network".

• Cisco Nexus 5000
• HP's Converged Networking page

Question 1: Strands. Use two or more. Some SFPs are simplex (bidirectional on one fiber), but duplex (one fiber for send, one for receive) are recommended. For a 1km run, you will need to use single-mode fiber (not multimode which is for short runs)

Question 2: Connector type. Use the same connector as your equipment. Most equipment SFPs are LC, but SC and LC both work just fine. If you ever need a different style, you can always get a patch panel.

Question 3: You can use SFPs with matching standards on both ends. (1000BASE-LX for example). I do recommend matching equipment on either end though.

Question 4: Due to the 1km distance, I would recommend single-mode duplex 1000base-LX. For example: 1000BASE-LX 1310nm 10km SFP Transceiver Module

Question 5: Get whatever media converter you like, but you must have matching standards on both ends (100Base-FX media converter, and SFP on other end). Don't worry too much about connectors because you can easily get a patch cord to convert one style to another.

I hope that helps. -Dane