Still… All of my points are valid.

- Brian


> On May 6, 2020, at 1:48 PM, Joe Horton <[email protected]> wrote:
> 
> Brian,
> 
> I'm not sure who you team is, but the other guys are correct.  You can 
> provision the addition ports using port mode.
> Just enabling the 100G ports does not disable the use of the additional 40G.  
> Been there done that, fully supported.
> If you've got something specific from your team or JTAC otherwise, and don't 
> feel right sharing it on the forum, feel free to reach out directly.
> 
> Joe
> 
> 
> On 5/6/20, 1:45 PM, "juniper-nsp on behalf of Brian Johnson" 
> <[email protected] 
> <mailto:[email protected]> on behalf of 
> [email protected] <mailto:[email protected]>> wrote:
> 
>    [External Email. Be cautious of content]
> 
> 
>    Several points.
> 
>    1. Configuration examples explaining how something is configured are not 
> supposed to imply that this is how you should configure it or even that the 
> exact configuration is valid. The example configuration could allow for 
> over-subscription if port 5 were added at 100G.
> 
>    2. The MPC7 card can be RTU licensed to 50% and 75% of the ports. Not 
> following licensing restrictions on port usage will void support.
> 
>    3. Junos will let you configure all kinds of things that will either not 
> work or break later. It’s a feature. ;)
> 
>    4. Be sure you fully understand what you are doing before implementing it 
> and checking with Juniper to be sure it is a supported configuration is not a 
> bad idea when there is a cloudy understanding of the features. I work with 
> customers all of the time on the Juniper MX product line and this card is 
> still very misunderstood (even by me occasionally).
> 
>    My advice would be to validate what you are doing with JTAC before 
> implementing In production.
> 
>    - Brian
> 
>> On May 6, 2020, at 12:47 PM, Tobias Heister <[email protected]> wrote:
>> 
>> On 06.05.2020 18:24, Brian Johnson wrote:
>>> 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. ;)
>> 
>> I would say it is supported. Even the documentation has an example where one 
>> port of the group is 100GE and two others are 10GE:
>> https://www.juniper.net/documentation/en_US/junos/topics/topic-map/rate-selectability-configuring.html#id-configuring-rate-selectability-at-port-level
>> 
>> Also with MPC7 its not like its honor based to only use 240G per PFE ... its 
>> a hard limit ;)
>> 
>> If you run in PIC Mode with 100GE set, than in deed the other ports are 
>> disabled:
>> "For example, if you choose to configure PIC 0 at 100-Gbps speed, only ports 
>> 2 and 5 of PIC 0 operate at 100-Gbps speed, while the other ports of the PIC 
>> are disabled."
>> https://www.juniper.net/documentation/en_US/junos/topics/topic-map/rate-selectability-configuring.html#id-configuring-rate-selectability-on-mpc7e-multi-rate-to-enable-different-port-speeds
>> 
>> I mean what else should it do, there are only two 100GE Ports per PFE anyway 
>> ;)
>> 
>> --
>> Kind Regards
>> Tobias Heister
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