trickle doesn't work

[queen]

I emerged trickle 1.0.6 some time ago. Now when i try to limit the upload speed it doesn't work. Here are the details:
in /usr/local/bin/linuxdc.sh i have:

#!/bin/bash
trickle -u 5 -d 80 /usr/local/portage/net-p2p/ldcpp

in : /etc/portage/package.keywords i have:
"net-misc/trickle -* ~x86"
&
in: /etc/portage/package.unmask i have:
net-misc/trickle ~x86

trickle sits in /usr/local/portage/net-misc/trickle/

The upload speed limiting and dl speed doesn't work. I want to limit upload speed.