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Questions tagged [qos]

Quality of service is the ability to provide different priority to different applications, users, or data flows, or to guarantee a certain level of performance to a data flow.

Quality of service is the ability to provide different priority to different applications, users, or data flows, or to guarantee a certain level of performance to a data flow.

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Why doesn't this "tc filter" rule classify the traffic at intended?

I'm trying to configure some basic traffic classification to limit the maximum ingress bandwidth for every machine in my local network to 3 Mbps. I'm operating the gateway 192.168.2.1, where the interface eth1 is attached to a switch to provide…
ConfusedUser001
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Validity of my basic Performance Testing Results on a LAN

Networking is not my main job and i am hoping you guys can comment on my test procedure so far to identify PCs best to host a few voip softphones. Our 100Mb LAN comprises of 40 Win XP/2000 PCs and a Windows SBS server, an enterprise switch and…
Gary B2312321321
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How to set an general network limit per client + priority for TCP acknowledgements

Following situation: Network A is connected to network B over an slow connection. Different hosts in network A would like to send traffic to hosts in network B. Hosts in network B sending commands to network A. What to do: Allow hosts in network…
Mr Mueseli
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What free utility can I use to test LAN performance and quality?

I want to test a LAN for speed and reliability, I wanted to use qcheck but it won't instal on any of our XP systems. What other tool could I use? Is there anything with voip tests that is free? Does anyone have a link to an older version of qcheck…
garyb32234234
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shape dropbox on linux router with tc and iptables

Another machine on my LAN is uploading to Dropbox and saturating my internet connection's upload bandwidth. When that happens my pings to 8.8.8.8 take 3000-6000ms. When dropbox is not uploading my pings to 8.8.8.8 are 45ms. I'm trying to simply slow…
Josh
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Bandwidth limit for multiple network destinations with a default (slow) match with Linux TC

I'm playing with Linux traffic control features to restrict KVM VM output bandwidth and got stuck while using filters to match destinations for a fast class and for a (default) slow class for a given VM. The physical network output interface is…
vroman
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Why am I unable to prioritize TCP traffic using ToS fields?

I am trying to prioritize TCP traffic using ToS field in IP header. I am saturating the interface(ethernet) by sending 1GB data through iperf with ToS field set to 0x10 (Minimize-Delay). I then start another TCP client with default ToS…
Varun
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QoS - How to detect Youtube HTML5 video over port 443?

I'm running Tomato on a small network. It has fairly comprehensive QoS controls, but I'm having trouble getting it to correctly classify Youtube HTML5 videos over port 443. They are being classified as FileXfer, the same as a regular download. I…
rahim123
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Layer 7 QoS Management

I have currently run a medium size SOHO network that can have up to 25-50 users and I am looking to implement a QoS system to better utilize the bandwidth. I currently am using pfSense however, both of its main QoS/Traffic Shaping options leave much…
Nick W.
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Load balancer + CPU load manager to handle SIP connections?

I no longer have a landline and subscribed to a VoIP provider to have a landline phone number. I prefer to use a softphone (EyeBeam, the commercial version of XLite), but there are times when a call comes in while a big download/compiling is under…
OverTheRainbow
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Rate Limit VLAN interface | Cisco Nexus

How to do QoS in cisco nexus for Rate limit. In cisco Routers , we will be creating a policy map and calling it in service_policy in VLAN Interface Ex: Policy-map Policy_2Mbps class class-default police cir 2048000 bc 384000 be 384000…
user3162395
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How to use virtualbox to simulate a sub network with the host as router?

I am currently working on QoS router functions using iptables and tc on Linux. I would like to use virtualbox to simulate a computer plug on my router (The router would be the host) Physically, I have the eth0 interface to the WAN and I would like…
Natim
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Configure Cisco QoS for VLAN

I have two VLANs (20 and 21) that are accessing the same resource on a switch. Clients on VLAN 20 access this resource only at schedule times, but when they do, they generate lots of traffic as they're dumping large amounts of data. Clients on VLAN…
johnnybgood04
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Percentual dynamic bandwidth control with tc

Does anyone know if tc (iproute2) can be used to percentually divide the currently available bandwidth? We're on a GPRS connection on which the available bandwidth changes frequently. What I want to achieve is the following: Egress to port x: 60%…
Jeroen
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Windows Server 2012 Policy-Based QoS

I am trying to implement Policy-based QoS on a Windows Server 2012 VM (running on Hyper-V), but for some reason it's not kicking in. The way I added the policy was by going into the Local Group Policy Editor ==> Windows Settings ==> Policy-based QoS…
Scott Salyer
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