ALTQ - Queueing For a DMZ: Rules Part 1

total_ext = 2Mb
total_dmz = 100Mb
altq on $ext_if cbq bandwidth $total_ext queue { ext_main, ext_web, \
        ext_udp, ext_mail, ext_ssh }
queue ext_main bandwidth 25% cbq(default borrow red) { ext_hi, ext_lo }
     queue ext_hi priority 7 bandwidth 20%
     queue ext_lo priority 0 bandwidth 80%
queue ext_web bandwidth 25% cbq(borrow red)
queue ext_udp bandwidth 20% cbq(borrow red)
queue ext_mail bandwidth 30% cbq(borrow red)
altq on $dmz_if cbq bandwidth $total_dmz queue { ext_dmz, dmz_main, \
      dmz_web, dmz_udp, dmz_mail }
queue ext_dmz bandwidth $total_ext cbq(borrow red) queue { ext_dmz_web, \
     ext_dmz_udp, ext_dmz_mail }
     queue ext_dmz_web bandwidth 40% priority 5
     queue ext_dmz_udp bandwidth 10% priority 7
     queue ext_dmz_mail bandwidth 50% priority 3
queue dmz_main bandwidth 25Mb cbq(default borrow red) queue { dmz_main_hi, \
     dmz_main_lo }
     queue dmz_main_hi priority 7 bandwidth 20%
     queue dmz_main_lo priority 0 bandwidth 80%
queue dmz_web bandwidth 25Mb cbq(borrow red)
queue dmz_udp bandwidth 20Mb cbq(borrow red)
queue dmz_mail bandwidth 20Mb cbq(borrow red)