So i have been using Juniper MX routers for some years now (mainly MX80’s) and have configured CoS in reasonably basic forms to suit $dayjob’s needs (mainly 4 queues).
It turns out that even though the MX routers support 8 queues in the basic line cards, by default it starts with 4 :s
Would it not be easier to enable all 8 to start with?
/rant
Tail Drop dot Net 
I believe this is mostly for historical reasons; but I’m curious why this rises to a rant level for you? There are only two queues used by default anyway.
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It was more the annoyance of finding out about it after the fact. It’s buried a bit in the documentation
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I clicked into this from Google+ thinking it was going to be a story about how 4 don’t really do anything or something. Glad that’s not the case 🙂
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Did I have you worried for a mo 😉
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Yes, you did! But a quick read and panic over. I always wondered why you had to set it, I also have never found out why you have to tell a chassis how many aggregated ethernet interfaces it’s going to have…. Just a couple of bizzare Junos quirks I guess.
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