[squid-users] delay pools

I am using version: squid-2.7.9 FreeBSD. I am using Authentication with
delay pools, as follows:

auth_param basic program /usr/local/libexec/squid/squid_ldap_auth -R -D
"cn=suporte,dc=xxx,dc=com,dc=br" -w "f34fadsfsdf" -b
"ou=Usuarios,dc=xxx,dc=com,dc=br" -f "uid=%s" -h 192.168.1.1 -d v3
auth_param basic children 5
auth_param basic realm Digite sua senha

acl ldap-auth proxy_auth REQUIRED
http_access allow ldap-auth
http_access allow localhost
http_access deny all
acl 128kbps proxy_auth "/usr/local/etc/squid/user.txt"
acl 256kbps proxy_auth "/usr/local/etc/squid/profs.txt"
acl admin proxy_auth "/usr/local/etc/squid/admin.txt"

delay_pools 3
delay_class 1 2
delay_access 1 allow 128kbps
delay_access 1 deny all
delay_class 2 2
delay_access 2 allow 256kbps
delay_access 2 deny all
delay_class 3 2
delay_access 3 allow admin
delay_access 3 deny all

delay_parameters 1 128000/512000 128000/512000
delay_parameters 2 512000/1024000 512000/1024000
delay_parameters 3 -1/-1 -1/-1

But initially it works fine, after 5 min, no longer access anything else
is simply too slow and nothing works. I wanted to make a control of
128kbps and 256kbps to stay slow and not having to close the browser and
restart the operation when

-- 
Márcio Luciano Donada
Aurora Alimentos - T.I. Matriz
Coop. Central Oeste Catarinense