Adam,

Simply put - No there isn't a way to oversubscribe the front panel.

Juniper has a handy tool to check your port combinations though - https://apps.juniper.net/home/port-checker/index.html

The lack of being able to oversubscribe has to do with # of lanes to the EA ASIC, and how those can be broken down.

Kevin

On Mon, May 16, 2022 at 11:04 AM Adam Thompson <athompson@merlin.mb.ca> wrote:

Hi all,

Hoping some Juniper-using folks know:

On the MX204, which comes with 4x100G + 8x10G ports, you can only use 3 of the 4 100G ports if you want to use any of the 10G ports at all.

Supposedly this is to prevent oversubscription on what is a 400G-rated router.  However, I’m perfectly fine with oversubscription with a 400G aggregate throughput cap.

Is there a way to stop the automatic “oh, I’ll disable these other ports for you so you don’t oversubscribe the box” behaviour and let all the front-panel ports be used at once?

-Adam

 

Adam Thompson

Consultant, Infrastructure Services

MERLIN

100 - 135 Innovation Drive

Winnipeg, MB R3T 6A8

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https://www.merlin.mb.ca

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