with the 3 dumb router set up for security if qos is turned on all the routers im assuming that t...

[G+_Dan K]

with the 3 dumb router set up for security if qos is turned on all the routers im assuming that the qos in the hub router connected to the modem gets first priority then the qos is handled by each router within the subnet second. is this correct

[G+_Eddie Foy]

Priority?  QoS shouldn't have to fight.  Streaming UDP packets should flow with preference.   The connection should get the priority, not a router.

 

(side rant: NetNuet: proof all packets aren't equal)

[G+_Black Merc]

The three dumb router setup is for isolation of sub networks, to help prevent a compromised device from getting to more interesting devices. QoS of one router only to its clients. As I understand it.

[G+_Ben Reese]

It really depends on your QOS settings. If I'm not mistaken, QOS could be used to give preference to a specific type of traffic (like VoIP) or to a specific physical port on the router. If you're base router is giving preference to the traffic from Router A on LAN Port 1, every device connected to Router A.

[G+_Dan K]

right. so the trafic would hit the first router and qos rules would priotise traffic befor getting to the subnet routers and once to the subnet wout prioritse again within the subnet then i belive

[G+_Michael Muni]

Dan K yes thats correct, but only if you have qos turned on for all of the routers. Your bottleneck should be at the point of your ISP and that is where QOS comes in to prioritize what gets sent out/in when your using your full bandwidth and packets start building up in the buffer. Adding qos to multiple router on your internal network would not add any benefit.

 

It would be like going through baggage check in the airport and then they have two more baggage checks before you board a plane. The second two checks are not needed.

[G+_Dan K]

i have qos turned on for all routers. i mostly use qos regarding voip and media streaming and some gaming

[G+_Eddie Foy]

You should segment you LAN for QoS.  All branches shouldn't need it.

[G+_Dan K]

any harm in leaving it on all the branches

[G+_Michael Muni]

The point in QOS is to prioritize packets when the network is too congested. Your internal networks should not be congested if it's a gigabit internal network. You really should only need QOS on the internet networks if you are doing things like constantly transferring files from one computer to another inside the network at constant speeds that saturate your 1gig internal network.

 

QOS is meant for prioritizing packets that are leaving your internal networks because once they leave your network and go out over your ISP you have lest bandwidth there and want to make sure things like VoIP packets get out of your network before all other packets that are building up in the routers buffer.

[G+_Dan K]

would leaving it as is hve any negative effect

[G+_Michael Muni]

Only negative is that the packets will have to be analyzed and processed at each router with QOS. Technically it will slow down the packets flow through the internal network. However depending on the routers, you may not even notice a difference.

 

It's like traveling down a highway and each QOS is a tollbooth. High priority packets will have a fast lane and not have to wait in line.