En este caso utilizaremos queue tree, separamos nuestro ancho de banda en tres categorías (por el momento solo utilizaremos dos) y limitaremos las descargas de archivos a la mínima prioridad.
contamos con una conexion adsl 2Mx512 y un promedio de 300 usuarios.
nos basamos en esta guia para realizarlo.
Lo más importante, dado el escaso ancho de banda, es limitar el consumo indiscriminado por parte de usuarios que descargan archivos de todo tipo y tamaño, o de procesos en background (updates) que raramente el usuario sabe la cantidad de recursos que le "roba". Para ello establecemos tres filtros para el puerto 80 y 443:
1) navegación (hasta 500b)
2) navegación descargas (de 500-5000000)
3) y la prioridad más baja, la descarga de archivos
empezamos en la tabla mangle marcando conexiones y luego marcando los paquetes que usaran esas conexiones:
/ip firewall mangleadd action=mark-packet chain=forward comment="" disabled=no new-packet-mark=\download-packet passthrough=no protocol=tcp src-address-list=downloadadd action=mark-connection chain=prerouting comment=DNS disabled=no dst-port=\53 new-connection-mark=dns_conn passthrough=yes protocol=udpadd action=mark-packet chain=prerouting comment="" connection-mark=dns_conn \disabled=no new-packet-mark=dns passthrough=noadd action=mark-connection chain=prerouting comment=Http connection-bytes=\0-500000 disabled=no dst-port=80 new-connection-mark=http_conn \passthrough=yes protocol=tcpadd action=mark-packet chain=prerouting comment="" connection-mark=http_conn \disabled=no new-packet-mark=http passthrough=noadd action=mark-connection chain=prerouting comment="Http Descarga" \connection-bytes=500000-5000000 disabled=no dst-port=80 \new-connection-mark=http_conn_descarga passthrough=yes protocol=tcpadd action=mark-packet chain=prerouting comment="" connection-mark=\http_conn_descarga disabled=no new-packet-mark=http_descarga passthrough=\noadd action=mark-connection chain=prerouting comment=Https connection-bytes=\0-500000 disabled=no dst-port=443 new-connection-mark=https_conn \passthrough=yes protocol=tcpadd action=mark-packet chain=prerouting comment="" connection-mark=https_conn \disabled=no new-packet-mark=https passthrough=noadd action=mark-connection chain=prerouting comment="Https Descarga" \connection-bytes=500000-5000000 disabled=no dst-port=443 \new-connection-mark=https_conn_descarga passthrough=yes protocol=tcpadd action=mark-packet chain=prerouting comment="" connection-mark=\https_conn_descarga disabled=no new-packet-mark=https_descarga \passthrough=noadd action=mark-connection chain=prerouting comment=Otros disabled=no \new-connection-mark=otras_conn passthrough=yesadd action=mark-packet chain=prerouting comment="" connection-mark=otras_conn \disabled=no new-packet-mark=other passthrough=noadd action=mark-connection chain=prerouting comment="ICMP (Ping)" disabled=no \new-connection-mark=icmp_conn passthrough=yes protocol=icmpadd action=mark-packet chain=prerouting comment="" connection-mark=icmp_conn \disabled=no new-packet-mark=icmp passthrough=no
Finalmente en queue tree creamos los parent y asignamos nuestras conexiones y paquetes marcados a las colas de prioridades
/queue treeadd burst-limit=0 burst-threshold=0 burst-time=0s disabled=no limit-at=0 \max-limit=0 name=QoS_down packet-mark="" parent=eth3-LAN priority=1 \queue=defaultadd burst-limit=0 burst-threshold=0 burst-time=0s disabled=no limit-at=\1024000 max-limit=1768000 name=3QoS_down_Web packet-mark="" parent=\QoS_down priority=5 queue=defaultadd burst-limit=0 burst-threshold=0 burst-time=0s disabled=no limit-at=0 \max-limit=0 name=2QoS_down_Games packet-mark="" parent=QoS_down priority=\2 queue=defaultadd burst-limit=0 burst-threshold=0 burst-time=0s disabled=no limit-at=0 \max-limit=0 name=1QoS_down_VoIP packet-mark="" parent=QoS_down priority=1 \queue=defaultadd burst-limit=0 burst-threshold=0 burst-time=0s disabled=no limit-at=0 \max-limit=0 name=QoS_up packet-mark="" parent=pppoe-out1 priority=1 \queue=defaultadd burst-limit=0 burst-threshold=0 burst-time=0s disabled=no limit-at=0 \max-limit=0 name=1QoS_up_VoIP packet-mark="" parent=QoS_up priority=1 \queue=defaultadd burst-limit=0 burst-threshold=0 burst-time=0s disabled=no limit-at=0 \max-limit=0 name=2QoS_up_Games packet-mark="" parent=QoS_up priority=2 \queue=defaultadd burst-limit=0 burst-threshold=0 burst-time=0s disabled=no limit-at=400000 \max-limit=512000 name=3QoS_up_Web packet-mark="" parent=QoS_up priority=5 \queue=defaultadd burst-limit=0 burst-threshold=0 burst-time=0s disabled=no limit-at=0 \max-limit=0 name=DNS_up packet-mark=dns parent=3QoS_up_Web priority=5 \queue=defaultadd burst-limit=0 burst-threshold=0 burst-time=0s disabled=no limit-at=0 \max-limit=0 name=Http_up packet-mark=http parent=3QoS_up_Web priority=5 \queue=defaultadd burst-limit=0 burst-threshold=0 burst-time=0s disabled=no limit-at=0 \max-limit=0 name=Https_up packet-mark=https parent=3QoS_up_Web priority=5 \queue=defaultadd burst-limit=0 burst-threshold=0 burst-time=0s disabled=no limit-at=0 \max-limit=0 name=Otros_up packet-mark=other parent=3QoS_up_Web priority=6 \queue=defaultadd burst-limit=0 burst-threshold=0 burst-time=0s disabled=no limit-at=0 \max-limit=0 name=Http_Descarga packet-mark=http_descarga parent=\3QoS_down_Web priority=6 queue=defaultadd burst-limit=0 burst-threshold=0 burst-time=0s disabled=no limit-at=0 \max-limit=0 name=DNS packet-mark=dns parent=3QoS_down_Web priority=5 \queue=defaultadd burst-limit=0 burst-threshold=0 burst-time=0s disabled=no limit-at=0 \max-limit=0 name=Http packet-mark=http parent=3QoS_down_Web priority=5 \queue=defaultadd burst-limit=0 burst-threshold=0 burst-time=0s disabled=no limit-at=0 \max-limit=0 name=Https packet-mark=https parent=3QoS_down_Web priority=5 \queue=defaultadd burst-limit=0 burst-threshold=0 burst-time=0s disabled=no limit-at=0 \max-limit=0 name=Otros packet-mark=other parent=3QoS_down_Web priority=7 \queue=defaultadd burst-limit=0 burst-threshold=0 burst-time=0s disabled=no limit-at=0 \max-limit=0 name=Https_Descarga packet-mark=https_descarga parent=\3QoS_down_Web priority=6 queue=defaultadd burst-limit=0 burst-threshold=0 burst-time=0s disabled=no limit-at=0 \max-limit=0 name=download-files packet-mark=download-packet parent=\3QoS_down_Web priority=7 queue=defaultadd burst-limit=0 burst-threshold=0 burst-time=0s disabled=no limit-at=0 \max-limit=0 name="ICMP_(Ping)_up" packet-mark=icmp parent=1QoS_up_VoIP \priority=1 queue=default
