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Traffic Shaping Limitations

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Nullity:
According to https://doc.pfsense.org/index.php/Traffic_Shaping_Guide#Limitations


--- Quote ---ALTQ shaping is not capable of setting an upper limit on traffic. Use Limiters for controller upper limits.
--- End quote ---

but HFSC explicitly has an "upper-limit". I dunno about other ALTQ algos but the quoted statement doesn't seem accurate. (ALTQ itself has an upper-limit on a per-interface basis with it's Token Bucket Regulator, but that's likely not what the quote is referring to.)


Some clarification regarding why limiters are being advocated over ALTQ for per-queue upper-limits would be useful.

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