A wise man once told me… “Just because you can do something, doesn’t mean you 
should”. More specific, “Just because you can do it in the Junos config, 
doesn’t mean it’s supported.” Junipers licensing “honor system” required 
honorable intentions. ;)

Have fun!

- Brian

> On May 6, 2020, at 11:03 AM, Chris Wopat <[email protected]> wrote:
> 
> On Wed, May 6, 2020 at 9:41 AM Brian Johnson <[email protected]> wrote:
>> 
>> So you have a 4x10G breakout and a 100G QSFP28 in the same group of 3 
>> interfaces and they are all working? Just because I can install and 
>> configure the optics, doesn’t mean they will function. This would conflict 
>> with what is coming from Juniper Product teams.
>> 
>> To be clear, I realize that the ports do not “disappear” because you insert 
>> the QSP28 into the port group, just that they will not work. :)
> 
> We've been this with MPC7s, works fine. You can squeeze the 240g out
> of each PIC just fine, you simply cannot oversub.
> 
>    fpc 7 {
>        pic 0 {
>            port 2 {
>                speed 100g;
>            }
>            port 4 {
>                speed 10g;
>            }
>            port 5 {
>                speed 100g;
>            }
>        }
>    }
> 
> ports 4 and 5 in same 'group of 3', et-7/05 up at 100g and
> xe-7/0/4:[0-3] up at 10g.

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