I have squid 3.1.4 but using this conf, the rate limiting to 1Mbps does not seem to work. What can I change in the conf / delay parameters? auth_param basic realm Myname proxy server auth_param basic credentialsttl 2 hours auth_param basic program /usr/lib/squid/ncsa_auth /etc/squid/squid_passwd authenticate_cache_garbage_interval 1 hour authenticate_ip_ttl 2 hours acl all src 0.0.0.0/0.0.0.0 acl manager proto cache_object acl localhost src 127.0.0.1/255.255.255.255 acl to_localhost dst 127.0.0.0/8 acl SSL_ports port 443 acl Safe_ports port 80 # http acl Safe_ports port 21 # ftp acl Safe_ports port 443 # https acl Safe_ports port 70 # gopher acl Safe_ports port 210 # wais acl Safe_ports port 1025-65535 # unregistered ports acl Safe_ports port 280 # http-mgmt acl Safe_ports port 488 # gss-http acl Safe_ports port 591 # filemaker acl Safe_ports port 777 # multiling http acl Safe_ports port 1863 # MSN messenger acl ncsa_users proxy_auth REQUIRED acl maxuser max_user_ip -s 2 acl CONNECT method CONNECT http_access deny manager http_access allow ncsa_users http_access deny !Safe_ports http_access deny CONNECT !SSL_ports http_access deny to_localhost http_access deny maxuser http_access allow localhost http_access deny all icp_access allow all http_port 8080 http_port xx.xx.xx.xx:80 hierarchy_stoplist cgi-bin ? cache_mem 100 MB maximum_object_size_in_memory 50 KB cache_replacement_policy heap LFUDA #cache_dir aufs /var/spool/squid 40000 16 256 #cache_dir null /null maximum_object_size 50 MB cache_swap_low 90 cache_swap_high 95 access_log /var/log/squid/access.log squid cache_log /var/log/squid/cache.log cache_store_log none buffered_logs on acl QUERY urlpath_regex cgi-bin \? cache deny QUERY refresh_pattern ^ftp: 1440 20% 10080 refresh_pattern ^gopher: 1440 0% 1440 refresh_pattern . 0 20% 4320 quick_abort_min 0 KB quick_abort_max 0 KB #acl apache rep_header Server ^Apache #broken_vary_encoding allow apache half_closed_clients off visible_hostname MyNameProxyServer log_icp_queries off dns_nameservers 208.67.222.222 208.67.220.220 hosts_file /etc/hosts memory_pools off client_db off #coredump_dir /var/spool/squid delay_pools 1 delay_class 1 2 delay_parameters 1 -1/-1 125000/125000 forwarded_for off via off