40/100G Breakout Inquiry – N9K-X97160YC-EX

[YuseokHwang33882]

I hope this message finds you well.

I would like to inquire about the breakout configuration support on the N9K-X97160YC-EX module running NX-OS version 9.3(11).

Specifically, I would like to know if it is possible to configure a 40G or 100G port to operate in breakout mode, dividing it into four 10G ports.
Could you please confirm whether this functionality is supported on this module and NX-OS version?
If so, I would also appreciate it if you could share any relevant configuration guides or CLI references for implementing this feature.

[YuseokHwang33882]

We plan to connect the breakout ports to a C9200-48P switch, which is equipped with a 10G uplink module.

[Mark Elsen]

  - Ref : https://isp-tech.ru/data/cisco/n9k-c9500/cisco-n9k-architecture-BRKDCT-3640-v2.pdf
            >...
           • Breakout modes • There are two breakout modes •
                                           40G to 4x10G breakout. •
                                                     This breaks out 40G ports into 4 X 10G ports •
                                                     Cli command :  interface breakout module 1 port map 10g-4x

M.

[YuseokHwang33882]

Is it possible to apply breakout configuration on a 40/100G port of the N9K-X97160YC-EX module?
If so, can we use a CVR-QSFP-SFP10G converter module to connect it as 10G?

[Mark Elsen]

  - @YuseokHwang33882         It's not listed in   https://tmgmatrix.cisco.com/?npid=39

   M.

[YuseokHwang33882]

We need to connect one of the 40/100G ports on the N9K-X97160YC-EX module to a 10G port.
Could you please advise which transceiver module should be used to enable this connection?
We are planning to use an LC-type multimode fiber (LC-MMF) cable for the connection.

[Mark Elsen]

  - @YuseokHwang33882   Ref : https://www.cisco.com/c/en/us/products/collateral/interfaces-modules/transceiver-modules/data_sheet_c78-660083.html
                                       >...Cisco QSFP to four SFP+ active optical breakout cables (Figure 4) are suitable for very short distances 

  (From Table 10) :
  >...
 

Cisco 40GBase-AOC QSFP to 4 SFP+ Active Optical breakout Cable, 1-meter	QSFP-4X10G-AOC1M
Cisco 40GBase-AOC QSFP to 4 SFP+ Active Optical breakout Cable, 2-meter	QSFP-4X10G-AOC2M
Cisco 40GBase-AOC QSFP to 4 SFP+ Active Optical breakout Cable, 3-meter	QSFP-4X10G-AOC3M
Cisco 40GBase-AOC QSFP to 4 SFP+ Active Optical breakout Cable, 5-meter	QSFP-4X10G-AOC5M
Cisco 40GBase-AOC QSFP to 4 SFP+ Active Optical breakout Cable, 7-meter	QSFP-4X10G-AOC7M
Cisco 40GBase-AOC QSFP to 4 SFP+ Active Optical breakout Cable, 10-meter

 M.

[YuseokHwang33882]

Can we simply insert a CVR-QSFP-SFP10G converter into a QSFP port on the N9K-X97160YC-EX module, and then use a GLC-SX-MMD SFP without configuring breakout mode?
We would like to know if this setup is supported without requiring breakout configuration.

[Mark Elsen]

- @ >...Can we simply insert a CVR-QSFP-SFP10G converter into a QSFP port on the N9K-X97160YC-EX module
           You can't because it's not compatible (ref : https://tmgmatrix.cisco.com/?npid=39 )

                    You need to look into these breakout cables which I mentioned earlier,

  M.

[YuseokHwang33882]

According to the compatibility matrix, it seems that using a GLC-SX-MMD SFP in a QSFP port requires a QSA (CVR-QSFP-SFP10G). Is that correct?

[Mark Elsen]

          - In my opinion that's not correct ,

  M.

[YuseokHwang33882]

I see, thank you. In the following setup, what is the recommended approach if the connection must go through an FDF (MMF patch panel)?
N9K-X97160YC-EX module <-> FDF (MMF) <-> C9200P-4X

[Mark Elsen]

  - @YuseokHwang33882    I am not familiar with that particular patch panel (model/type) ; consult guide to check if that
                                            is possible what you want or else contact support from manufacturer for  details,

  M.