Bandwidth manager solution

[Balgansuren Batsukh]

Hello All,

Is there any hardware vendor suggest for me?

I need to manage bandwidth management 1xSTM-1/OC3-2xSTM-1 optical IP 
bandwidth circuit.

Anyone has experience with www.etinc.com bandwidth manager?

I saw others like Allot, Packeteer, Cisco SCE2000 only doing protocol, 
service based bandwidth management using TCP rate limit, fair queueing.

I am looking high performance bandwidth manager, traffic shaper for IP core 
network to configure leased line, xDSL, Ethernet, GPON/EPON, wireless 
subscribers.

Is there any FreeBSD based solution?

Regards,
Balgaa