ALTQ + CBQ -> http & ftp

[Andrei Manescu]

Hello everyone.

Probabily this is not the first email on this topic, so I'll be brief:
I have the following queues:

altq on xl0 cbq bandwidth 5000Kb queue { def, ftp, http, ssh, icmp, ack }
queue ack bandwidth 50Kb priority 7 cbq(borrow)
queue ssh bandwidth 50Kb priority 6 { ssh_login, ssh_bulk }
    queue ssh_login bandwidth 25% priority 6 cbq(borrow)
    queue ssh_bulk bandwidth 75% priority 5 cbq(borrow)
queue http bandwidth 4000Kb priority 5 cbq
queue ftp bandwidth 390Kb priority 2 cbq(borrow)
queue def bandwidth 500Kb priority 1 cbq(default)
queue icmp bandwidth 10Kb priority 0 cbq
... and these rules for http & ftp traffic:

pass in log-all quick on $ext_if1 proto tcp from any to <jails> port {80, 8080} flags S/SA synproxy state queue http

pass in log quick on $ext_if1 proto tcp from any to <jails> port ftp flags S/SA synproxy state
pass out log-all quick on $ext_if1 proto {tcp,udp} from $external_addr1 \
to any port 65530:65534 flags S/SA keep state queue ftp

The thing is that ftp is in passive mode and when there is traffic both on http & ftp each type of transfer has ~50% of the bandwidth, so the higher priority from http queue doesn't apply at all.

Has anyone some suggestion for the rules above ?

Thank you in advance for your pacience and wisdom :)

Andrei.