QSFP-40G-SR-BD

[adamgibs7]

Dear

I have QSFP-40G-SR-BD on Nexus 93180Y , I want to connect from QSFP 40GIG to 6509 SWITCH ON  X2 10GIG TRANSIEVER, is it possible, What I have to do ,,I have to reduce the speed from 40 GIG to 10 GIG ?? is it speed negotiate command possible on QSFP 40GIG ,

the fiber connection will be like this

Nexus 93180 QSFP LC connection -----patch Panel -----patch panel -----X2 10GIG on 6509 module

Thanks

[nazimkha]

You would need a breakout QSFP or cable on the Nexus 93180 40G port.
The breakout QSFP....converts the 40G to 4 X 10G

[adamgibs7]

Dear

I already have a QSFP-40G-SR-BD it is LC connector so how the breakout cable will work on top of it, if I want to use a breakout cable then i have to use a adapter to convert otherwise in LC connection it will not be possible please correct me if i m wrong ???

so i think for QSFP-40G-SR-BD connection it should connect with only 40 gig interface.

thanks

[nazimkha]

With QSFP-40G-SR-BD you can only connect to another 40G port

for eg : Nexus 9K -40GPort--QSFP-40G-SR-BD=====LC-LC patch cord====QSFP-40G-SR-BD---Nexus 9K -40GPort

So for breakout you may have to use a breakout cable (QSFP-4X10G-AOC5M)

https://www.cisco.com/c/en/us/products/collateral/interfaces-modules/transceiver-modules/data_sheet_c78-660083.pdf

[adamgibs7]

Dear Nazim

As per the datasheet the uplink port for N9K-C93180YC can work as an 10 GIG, 40GIG, 25 GIG, and 100G, so if i  reduced the speed to 10G for the uplink port then i can connect to 6509 X2 10GIG port,

Please correct me if i m wrong.

Thanks

[nazimkha]

That's correct the Nexus port speed supports but the QSFP-40G-SR-BD only supports 40G. For 10G connectivity you can use a breakout QSFP, QSFP adapter (converts 40G to 10G) or QSFP breakout cable.

[adamgibs7]

Dear Nazim

Thanks for your reply

so u mean to say on one side with cvr-qsfp-sfp10G  adapter with SFP-10G-SR into it, and on the another end on 6509 with Cisco X2-10GB-SR , does the link will come up, there will be no compatibility issue between X2 on 6509 and SFP-10G-SR on Nexus.

The breakout cable is maximum of 5M so this mean it can work within or between the rack and it is one piece with sfp's , so this will not work with my 6509 switch which is far from the Nexus rack

thanks 

[nazimkha]

so u mean to say on one side with cvr-qsfp-sfp10G  adapter with SFP-10G-SR into it, and on the another end on 6509 with Cisco X2-10GB-SR , does the link will come up, there will be no compatibility issue between X2 on 6509 and SFP-10G-SR on Nexus.

Yes this should work

https://community.cisco.com/t5/switching/how-sfp-can-connect-to-x2/td-p/2072788

http://www.cables-solutions.com/can-we-interconnect-sfp-sfp-xfp-x2-and-xenpak.html

The breakout cable is maximum of 5M so this mean it can work within or between the rack and it is one piece with sfp's , so this will not work with my 6509 switch which is far from the Nexus rack

I think you get a 10M breakout also but with the breakout cable you have one 40G QSFP at one end and 4 10G SFP+ at other end

[nazimkha · Accepted solution]

so u mean to say on one side with cvr-qsfp-sfp10G adapter with SFP-10G-SR into it, and on the another end on 6509 with Cisco X2-10GB-SR , does the link will come up, there will be no compatibility issue between X2 on 6509 and SFP-10G-SR on Nexus.

Yes that would work
https://community.cisco.com/t5/switching/how-sfp-can-connect-to-x2/td-p/2072788
http://www.cables-solutions.com/can-we-interconnect-sfp-sfp-xfp-x2-and-xenpak.html


The breakout cable is maximum of 5M so this mean it can work within or between the rack and it is one piece with sfp's , so this will not work with my 6509 switch which is far from the Nexus rack

I think you get a 10M breakout cable also but with breakout cable one end you have 40G QSFP and other end you have four 10G SFP+
QSFP-4X10G-AOC (1M, 2M, 3M, 5M, 7M, 10M) : QSFP to four SFP+ active optical breakout cables