I sincerely doubt there is much demand for *new* 40G these days.

Look at the population of 40G members on major IXes.

People have either one 10G, 2 x 10G, or 100G.

40G was a dead-end 9 years ago and much so more now.



On Wed, Aug 23, 2023 at 9:38 AM Aaron Gould <aaron1@gvtc.com> wrote:
some of these port capabilities are weird to me.  like on the
ACX7100-48L you can do 4x100 or 8x50, but ONLY one 40g ?!

me@7100> show chassis pic pic-slot 0 fpc-slot 0 | find 400
   48     0       1x400G 1x100G 1x40G 4x100G 2x100G 8x50G 2x50G 4x25G
4x10G 3x100G
   49     0       1x400G 1x100G 1x40G 4x100G 2x100G 8x50G 2x50G 4x25G
4x10G 3x100G
   50     0       1x400G 1x100G 1x40G 4x100G 2x100G 8x50G 2x50G 4x25G
4x10G 3x100G
   51     0       1x400G 1x100G 1x40G 4x100G 2x100G 8x50G 2x50G 4x25G
4x10G 3x100G
   52     0       1x400G 1x100G 1x40G 4x100G 2x100G 8x50G 2x50G 4x25G
4x10G 3x100G
   53     0       1x400G 1x100G 1x40G 4x100G 2x100G 8x50G 2x50G 4x25G
4x10G 3x100G
   54     NA      1x10G




On 8/23/2023 11:29 AM, tim@pelican.org wrote:
> On Wednesday, 23 August, 2023 16:33, "Mark Tinka" <mark@tinka.africa> said:
>
> [faceplate oversubscription]
>
>> On the new ACX line, yes.
> Not Trio, and different PLM :)
>
>> We don't mess around with any other MX products, so not sure (although
>> we are still yet to deploy the MPC10E's and the MX304).
> MX304 (well, strictly LMIC16) has the same restriction, and a need for another entry in the magic port checker (https://apps.juniper.net/home/port-checker/index.html) for restrictions beyond "SUM(port-speeds) <= 1.6T".
>
> They make sense once you've looked at the block diagram for the thing and followed the lines, but things like "4x10G breakout can only go in odd-numbered ports, and you have to leave the corresponding next-lowest even-numbered port empty" are not instantly obvious.
>
> Thanks,
> Tim.
>
>
--
-Aaron