How to 40G Port connect to four 10G port

[neeeewbie]

Hi guys

I need your help

How to 40G Port connect to four 10G port ?

40G Port connected to 40G port but 40G port not connected four 10G port [four 10G port Up state but 40G port down]

I guess this relate to media speed .. but not connected when I configure trunk mode of four 10G port

please let me know it if you know !

thank you

[boneyard]

could you perhaps add a little drawing, im not quite sure how you are trying to connect this.

[neeeewbie]

I just tried to connected F5(40G) to Cisco(10G * 4ea)

F5 interface not working [40G port status is down but cisco side is up] when I tried to connected 40G port to 10G * 4ea using break out cable

(I guess this is relate to speed negotiation)

So, I try to connect to 10G *4ea using trunk

[ F5 40G port configure trunk and cisco port configure trunk ]