pfSense

Using the traffic shaper wizard with PRIQ, if you choose to give a protocol lower priority on the "Raise or Lower Other Applications" step of the wizard, it generates an invalid ruleset.

: pfctl -f /tmp/rules.debug
pfctl: qDefault and qOthersLow have the same priority
/tmp/rules.debug:66: errors in queue definition
pfctl: Syntax error in config file: pf rules not loaded

As you can see in the rules, it has given both a priority of 3:

    59   altq on  em1 priq queue {  qACK,  qDefault,  qP2P,  qVoIP,  qGames,  qOthersHigh,  qOthersLow,  qLink  } 
    60   queue qACK on em1 priority 6 priq (  ecn  )  
    61   queue qDefault on em1 priority 3 priq (  ecn  , default  )  
    62   queue qP2P on em1 priority 1 priq (  ecn  )  
    63   queue qVoIP on em1 priority 7 priq (  ecn  )  
    64   queue qGames on em1 priority 5 priq (  ecn  )  
    65   queue qOthersHigh on em1 priority 4 priq (  ecn  )  
    66   queue qOthersLow on em1 priority 3 priq (  ecn  )  
    67   queue qLink on em1 priority 2 qlimit 500 priq (  ecn  , default  ) 

PRIQ can use priorities from 0-15 so it would make sense to shift the other priorities higher in the PRIQ case. CBQ and HFSC can only use 1-7.