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Can I use dark fiber between Cisco MDS and Storage.

Mahmoud Marie
Level 1
Level 1

Hello 

We have two of Cisco C9148S MDS san switch connected to EMC unity storage with multimode connection (DS-SFP-FC16G-SW) & (Avago 16Gb SFP+ SW).

as we need to relocate it, can I connect one of the MDS with the storage with single-mode dark fiber (DS-SFP-FC16G-LW) &(Avago 16Gb SFP+ LW)?

Appreciate your help

Thanks

1 Accepted Solution

Accepted Solutions

Mark Elsen
Hall of Fame
Hall of Fame

 

        - If both ends are using compatible single-mode fiber SFP's , then that should work , 
  ==> (edited/added). Since we are talking about dark fiber here  ; consider it mandatory to have a test on it first before connecting it to the production equipment 

 M.



-- Let everything happen to you  
       Beauty and terror
      Just keep going    
       No feeling is final
Reiner Maria Rilke (1899)

View solution in original post

2 Replies 2

Mark Elsen
Hall of Fame
Hall of Fame

 

        - If both ends are using compatible single-mode fiber SFP's , then that should work , 
  ==> (edited/added). Since we are talking about dark fiber here  ; consider it mandatory to have a test on it first before connecting it to the production equipment 

 M.



-- Let everything happen to you  
       Beauty and terror
      Just keep going    
       No feeling is final
Reiner Maria Rilke (1899)

Jason Mooney
Cisco Employee
Cisco Employee

@Mahmoud Marie You can connect two switches via long-wave SFPs over extended distances.  You will need to adjust the number of buffer to buffer credits on the ports of the ISL in both directions.  Information about calculating the number of buffer to buffer credits, and how to perform the tasks can be found here: Configuring Interface Buffers 

If you want to connect within the data center, yes you can connect end devices such at storage arrays to MDS switches using single-mode fiber.  

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